diff --git a/ci/makeMockCompiler.js b/ci/makeMockCompiler.js
index 82c6049d44..240ac8c541 100644
--- a/ci/makeMockCompiler.js
+++ b/ci/makeMockCompiler.js
@@ -3,7 +3,7 @@
 var fs = require('fs')
 var compiler = require('solc')
 var compilerInput = require('remix-solidity').CompilerInput
-var defaultVersion = 'v0.5.1+commit.c8a2cb62'
+var defaultVersion = 'v0.5.10+commit.5a6ea5b1'
 
 compiler.loadRemoteVersion(defaultVersion, (error, solcSnapshot) => {
   if (error) console.log(error)
@@ -44,6 +44,12 @@ function compile (solcSnapshot, source, optimization, addCompilationResult) {
   } catch (e) {
     console.log(e)
   }
+  if (result && (result.error || (result.errors && result.errors.length > 0))) {
+    console.log(result.error, result.errors)
+  }
+  if (result) {
+    console.log(result.error, result.errors)
+  }
   var ret = {
     key: input,
     source: source,
diff --git a/contracts/src/gmbh/company.sol b/contracts/src/gmbh/company.sol
index 1b2e827e43..8f907ed55c 100644
--- a/contracts/src/gmbh/company.sol
+++ b/contracts/src/gmbh/company.sol
@@ -1,3 +1,4 @@
+pragma solidity ^0.5.10;
 import "./contract.sol";
 contract Assets {
     uint[] proposals;
diff --git a/package-lock.json b/package-lock.json
index 35119d6157..2ed662dae2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1634,9 +1634,9 @@
       }
     },
     "@improved/node": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/@improved/node/-/node-1.0.0.tgz",
-      "integrity": "sha512-8r6WN+Qp2EsZ6G2F1y0vpJjGFVtoCQQ1aCrvBJ1ofy7SG96nG8FfeXWalxsCbh7zMrieOF45McAb50bYCLCuBQ=="
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@improved/node/-/node-1.1.1.tgz",
+      "integrity": "sha512-ePDxG9UuU9Kobk90ZUjtmDW8IT9U7aRb1/Rl9683MRNM+ur0ocHL2v7TPH2ajTiVSBUFbbeW8vKIt9jrb0JIAA=="
     },
     "@remixproject/engine": {
       "version": "0.1.14",
@@ -2502,6 +2502,11 @@
         "on-load": "^3.2.0"
       }
     },
+    "bignumber.js": {
+      "version": "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
+      "from": "git+https://github.com/frozeman/bignumber.js-nolookahead.git",
+      "dev": true
+    },
     "binary-extensions": {
       "version": "1.13.1",
       "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-1.13.1.tgz",
@@ -3446,9 +3451,9 @@
       }
     },
     "cmd-shim": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/cmd-shim/-/cmd-shim-2.0.2.tgz",
-      "integrity": "sha1-b8vamUg6j9FdfTChlspp1oii79s=",
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/cmd-shim/-/cmd-shim-2.1.0.tgz",
+      "integrity": "sha512-A5C0Cyf2H8sKsHqX0tvIWRXw5/PK++3Dc0lDbsugr90nOECLLuSPahVQBG8pgmgiXgm/TzBWMqI2rWdZwHduAw==",
       "requires": {
         "graceful-fs": "^4.1.2",
         "mkdirp": "~0.5.0"
@@ -3902,9 +3907,9 @@
       },
       "dependencies": {
         "semver": {
-          "version": "5.7.0",
-          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.0.tgz",
-          "integrity": "sha512-Ya52jSX2u7QKghxeoFGpLwCtGlt7j0oY9DYb5apt9nPlJ42ID+ulTXESnt/qAQcoSERyZ5sl3LDIOw0nAn/5DA=="
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ=="
         }
       }
     },
@@ -7478,9 +7483,9 @@
       },
       "dependencies": {
         "semver": {
-          "version": "5.7.0",
-          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.0.tgz",
-          "integrity": "sha512-Ya52jSX2u7QKghxeoFGpLwCtGlt7j0oY9DYb5apt9nPlJ42ID+ulTXESnt/qAQcoSERyZ5sl3LDIOw0nAn/5DA=="
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ=="
         }
       }
     },
@@ -9122,9 +9127,9 @@
           }
         },
         "semver": {
-          "version": "5.7.0",
-          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.0.tgz",
-          "integrity": "sha512-Ya52jSX2u7QKghxeoFGpLwCtGlt7j0oY9DYb5apt9nPlJ42ID+ulTXESnt/qAQcoSERyZ5sl3LDIOw0nAn/5DA=="
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ=="
         }
       }
     },
@@ -10680,19 +10685,19 @@
       "dependencies": {
         "ansi-regex": {
           "version": "2.1.1",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
           "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
           "dev": true
         },
         "code-point-at": {
           "version": "1.1.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz",
           "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=",
           "dev": true
         },
         "cross-spawn": {
           "version": "5.1.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-5.1.0.tgz",
           "integrity": "sha1-6L0O/uWPz/b4+UUQoKVUu/ojVEk=",
           "dev": true,
           "requires": {
@@ -10703,13 +10708,13 @@
         },
         "decamelize": {
           "version": "1.2.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-1.2.0.tgz",
           "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=",
           "dev": true
         },
         "execa": {
           "version": "0.7.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/execa/-/execa-0.7.0.tgz",
           "integrity": "sha1-lEvs00zEHuMqY6n68nrVpl/Fl3c=",
           "dev": true,
           "requires": {
@@ -10724,7 +10729,7 @@
         },
         "find-up": {
           "version": "2.1.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-2.1.0.tgz",
           "integrity": "sha1-RdG35QbHF93UgndaK3eSCjwMV6c=",
           "dev": true,
           "requires": {
@@ -10733,25 +10738,25 @@
         },
         "get-caller-file": {
           "version": "1.0.2",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-1.0.2.tgz",
           "integrity": "sha1-9wLmMSfn4jHBYKgMFVSstw1QR+U=",
           "dev": true
         },
         "get-stream": {
           "version": "3.0.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-3.0.0.tgz",
           "integrity": "sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ=",
           "dev": true
         },
         "invert-kv": {
           "version": "1.0.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/invert-kv/-/invert-kv-1.0.0.tgz",
           "integrity": "sha1-EEqOSqym09jNFXqO+L+rLXo//bY=",
           "dev": true
         },
         "is-fullwidth-code-point": {
           "version": "1.0.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
           "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
           "dev": true,
           "requires": {
@@ -10760,19 +10765,19 @@
         },
         "is-stream": {
           "version": "1.1.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/is-stream/-/is-stream-1.1.0.tgz",
           "integrity": "sha1-EtSj3U5o4Lec6428hBc66A2RykQ=",
           "dev": true
         },
         "isexe": {
           "version": "2.0.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
           "integrity": "sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=",
           "dev": true
         },
         "lcid": {
           "version": "1.0.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/lcid/-/lcid-1.0.0.tgz",
           "integrity": "sha1-MIrMr6C8SDo4Z7S28rlQYlHRuDU=",
           "dev": true,
           "requires": {
@@ -10781,7 +10786,7 @@
         },
         "locate-path": {
           "version": "2.0.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-2.0.0.tgz",
           "integrity": "sha1-K1aLJl7slExtnA3pw9u7ygNUzY4=",
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           "requires": {
@@ -10791,7 +10796,7 @@
         },
         "lru-cache": {
           "version": "4.1.1",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-4.1.1.tgz",
           "integrity": "sha512-q4spe4KTfsAS1SUHLO0wz8Qiyf1+vMIAgpRYioFYDMNqKfHQbg+AVDH3i4fvpl71/P1L0dBl+fQi+P37UYf0ew==",
           "dev": true,
           "requires": {
@@ -10801,7 +10806,7 @@
         },
         "mem": {
           "version": "1.1.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/mem/-/mem-1.1.0.tgz",
           "integrity": "sha1-Xt1StIXKHZAP5kiVUFOZoN+kX3Y=",
           "dev": true,
           "requires": {
@@ -10810,19 +10815,19 @@
         },
         "mimic-fn": {
           "version": "1.1.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/mimic-fn/-/mimic-fn-1.1.0.tgz",
           "integrity": "sha1-5md4PZLonb00KBi1IwudYqZyrRg=",
           "dev": true
         },
         "minimist": {
           "version": "0.0.8",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
           "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
           "dev": true
         },
         "mkdirp": {
           "version": "0.5.1",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
           "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
           "dev": true,
           "requires": {
@@ -10831,7 +10836,7 @@
         },
         "npm-run-path": {
           "version": "2.0.2",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-2.0.2.tgz",
           "integrity": "sha1-NakjLfo11wZ7TLLd8jV7GHFTbF8=",
           "dev": true,
           "requires": {
@@ -10840,13 +10845,13 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/number-is-nan/-/number-is-nan-1.0.1.tgz",
           "integrity": "sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=",
           "dev": true
         },
         "os-locale": {
           "version": "2.1.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-2.1.0.tgz",
           "integrity": "sha512-3sslG3zJbEYcaC4YVAvDorjGxc7tv6KVATnLPZONiljsUncvihe9BQoVCEs0RZ1kmf4Hk9OBqlZfJZWI4GanKA==",
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           "requires": {
@@ -10857,19 +10862,19 @@
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         "p-finally": {
           "version": "1.0.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/p-finally/-/p-finally-1.0.0.tgz",
           "integrity": "sha1-P7z7FbiZpEEjs0ttzBi3JDNqLK4=",
           "dev": true
         },
         "p-limit": {
           "version": "1.1.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-1.1.0.tgz",
           "integrity": "sha1-sH/y2aXYi+yAYDWJWiurZqJ5iLw=",
           "dev": true
         },
         "p-locate": {
           "version": "2.0.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-2.0.0.tgz",
           "integrity": "sha1-IKAQOyIqcMj9OcwuWAaA893l7EM=",
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           "requires": {
@@ -10878,43 +10883,43 @@
         },
         "path-exists": {
           "version": "3.0.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
           "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=",
           "dev": true
         },
         "path-key": {
           "version": "2.0.1",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/path-key/-/path-key-2.0.1.tgz",
           "integrity": "sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=",
           "dev": true
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         "pseudomap": {
           "version": "1.0.2",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/pseudomap/-/pseudomap-1.0.2.tgz",
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           "dev": true
         },
         "require-directory": {
           "version": "2.1.1",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
           "integrity": "sha1-jGStX9MNqxyXbiNE/+f3kqam30I=",
           "dev": true
         },
         "require-main-filename": {
           "version": "1.0.1",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-1.0.1.tgz",
           "integrity": "sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE=",
           "dev": true
         },
         "set-blocking": {
           "version": "2.0.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
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           "dev": true
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         "shebang-command": {
           "version": "1.2.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
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           "requires": {
@@ -10923,19 +10928,19 @@
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         "shebang-regex": {
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-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-1.0.0.tgz",
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           "dev": true
         },
         "signal-exit": {
           "version": "3.0.2",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz",
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           "dev": true
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         "string-width": {
           "version": "1.0.2",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
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@@ -10946,7 +10951,7 @@
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           "version": "3.0.1",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
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           "requires": {
@@ -10955,13 +10960,13 @@
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-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz",
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           "dev": true
         },
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-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/which/-/which-1.3.0.tgz",
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           "requires": {
@@ -10970,13 +10975,13 @@
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         "which-module": {
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-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
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-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
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           "requires": {
@@ -10986,19 +10991,19 @@
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-          "resolved": false,
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@@ -11018,13 +11023,13 @@
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@@ -11035,7 +11040,7 @@
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@@ -11048,7 +11053,7 @@
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@@ -11058,13 +11063,13 @@
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                   "version": "4.0.0",
-                  "resolved": false,
+                  "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
                   "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
                   "dev": true,
                   "requires": {
@@ -11077,7 +11082,7 @@
         },
         "yargs-parser": {
           "version": "8.0.0",
-          "resolved": false,
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-8.0.0.tgz",
           "integrity": "sha1-IdR2Mw5agieaS4gTRb8GYQLiGcY=",
           "dev": true,
           "requires": {
@@ -11086,7 +11091,7 @@
           "dependencies": {
             "camelcase": {
               "version": "4.1.0",
-              "resolved": false,
+              "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
               "integrity": "sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=",
               "dev": true
             }
@@ -11718,9 +11723,9 @@
       },
       "dependencies": {
         "semver": {
-          "version": "5.7.0",
-          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.0.tgz",
-          "integrity": "sha512-Ya52jSX2u7QKghxeoFGpLwCtGlt7j0oY9DYb5apt9nPlJ42ID+ulTXESnt/qAQcoSERyZ5sl3LDIOw0nAn/5DA=="
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ=="
         }
       }
     },
@@ -12425,9 +12430,9 @@
       "dev": true
     },
     "read-cmd-shim": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/read-cmd-shim/-/read-cmd-shim-1.0.1.tgz",
-      "integrity": "sha1-LV0Vd4ajfAVdIgd8MsU/gynpHHs=",
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/read-cmd-shim/-/read-cmd-shim-1.0.4.tgz",
+      "integrity": "sha512-Pqpl3qJ/QdOIjRYA0q5DND/gLvGOfpIz/fYVDGYpOXfW/lFrIttmLsBnd6IkyK10+JHU9zhsaudfvrQTBB9YFQ==",
       "requires": {
         "graceful-fs": "^4.1.2"
       }
@@ -12771,18 +12776,11 @@
           "integrity": "sha1-PpcwauAk+yThCj11yIQwJWIhUSA=",
           "dev": true,
           "requires": {
-            "bignumber.js": "bignumber.js@git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
+            "bignumber.js": "git+https://github.com/frozeman/bignumber.js-nolookahead.git",
             "crypto-js": "^3.1.4",
             "utf8": "^2.1.1",
             "xhr2": "*",
             "xmlhttprequest": "*"
-          },
-          "dependencies": {
-            "bignumber.js": {
-              "version": "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
-              "from": "bignumber.js@git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
-              "dev": true
-            }
           }
         }
       }
@@ -12801,6 +12799,11 @@
         "web3": "0.20.6"
       },
       "dependencies": {
+        "bignumber.js": {
+          "version": "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
+          "from": "git+https://github.com/frozeman/bignumber.js-nolookahead.git",
+          "dev": true
+        },
         "ethereumjs-util": {
           "version": "4.5.0",
           "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-4.5.0.tgz",
@@ -12864,18 +12867,11 @@
           "integrity": "sha1-PpcwauAk+yThCj11yIQwJWIhUSA=",
           "dev": true,
           "requires": {
-            "bignumber.js": "bignumber.js@git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
+            "bignumber.js": "git+https://github.com/frozeman/bignumber.js-nolookahead.git",
             "crypto-js": "^3.1.4",
             "utf8": "^2.1.1",
             "xhr2": "*",
             "xmlhttprequest": "*"
-          },
-          "dependencies": {
-            "bignumber.js": {
-              "version": "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
-              "from": "bignumber.js@git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
-              "dev": true
-            }
           }
         }
       }
@@ -12898,6 +12894,11 @@
         "web3": "0.20.6"
       },
       "dependencies": {
+        "bignumber.js": {
+          "version": "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
+          "from": "git+https://github.com/frozeman/bignumber.js-nolookahead.git",
+          "dev": true
+        },
         "fast-async": {
           "version": "6.3.8",
           "resolved": "https://registry.npmjs.org/fast-async/-/fast-async-6.3.8.tgz",
@@ -12914,18 +12915,11 @@
           "integrity": "sha1-PpcwauAk+yThCj11yIQwJWIhUSA=",
           "dev": true,
           "requires": {
-            "bignumber.js": "bignumber.js@git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
+            "bignumber.js": "git+https://github.com/frozeman/bignumber.js-nolookahead.git",
             "crypto-js": "^3.1.4",
             "utf8": "^2.1.1",
             "xhr2": "*",
             "xmlhttprequest": "*"
-          },
-          "dependencies": {
-            "bignumber.js": {
-              "version": "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
-              "from": "bignumber.js@git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
-              "dev": true
-            }
           }
         }
       }
@@ -12997,6 +12991,11 @@
           "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=",
           "dev": true
         },
+        "bignumber.js": {
+          "version": "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
+          "from": "git+https://github.com/frozeman/bignumber.js-nolookahead.git",
+          "dev": true
+        },
         "chalk": {
           "version": "1.1.3",
           "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
@@ -13320,18 +13319,11 @@
               "integrity": "sha1-PpcwauAk+yThCj11yIQwJWIhUSA=",
               "dev": true,
               "requires": {
-                "bignumber.js": "bignumber.js@git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
+                "bignumber.js": "git+https://github.com/frozeman/bignumber.js-nolookahead.git",
                 "crypto-js": "^3.1.4",
                 "utf8": "^2.1.1",
                 "xhr2": "*",
                 "xmlhttprequest": "*"
-              },
-              "dependencies": {
-                "bignumber.js": {
-                  "version": "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
-                  "from": "bignumber.js@git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
-                  "dev": true
-                }
               }
             }
           }
@@ -13488,6 +13480,11 @@
         "webworkify": "^1.2.1"
       },
       "dependencies": {
+        "bignumber.js": {
+          "version": "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
+          "from": "git+https://github.com/frozeman/bignumber.js-nolookahead.git",
+          "dev": true
+        },
         "ethereumjs-util": {
           "version": "4.5.0",
           "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-4.5.0.tgz",
@@ -13551,18 +13548,11 @@
           "integrity": "sha1-PpcwauAk+yThCj11yIQwJWIhUSA=",
           "dev": true,
           "requires": {
-            "bignumber.js": "bignumber.js@git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
+            "bignumber.js": "git+https://github.com/frozeman/bignumber.js-nolookahead.git",
             "crypto-js": "^3.1.4",
             "utf8": "^2.1.1",
             "xhr2": "*",
             "xmlhttprequest": "*"
-          },
-          "dependencies": {
-            "bignumber.js": {
-              "version": "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
-              "from": "bignumber.js@git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
-              "dev": true
-            }
           }
         }
       }
@@ -13635,6 +13625,11 @@
         "winston": "^3.0.0"
       },
       "dependencies": {
+        "bignumber.js": {
+          "version": "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
+          "from": "git+https://github.com/frozeman/bignumber.js-nolookahead.git",
+          "dev": true
+        },
         "bn.js": {
           "version": "4.11.6",
           "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.6.tgz",
@@ -13651,7 +13646,6 @@
           "version": "2.6.9",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
           "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
-          "dev": true,
           "requires": {
             "ms": "2.0.0"
           }
@@ -13743,8 +13737,7 @@
         "ms": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
-          "dev": true
+          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
         },
         "remix-lib": {
           "version": "0.4.7",
@@ -13793,18 +13786,11 @@
               "integrity": "sha1-PpcwauAk+yThCj11yIQwJWIhUSA=",
               "dev": true,
               "requires": {
-                "bignumber.js": "bignumber.js@git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
+                "bignumber.js": "git+https://github.com/frozeman/bignumber.js-nolookahead.git",
                 "crypto-js": "^3.1.4",
                 "utf8": "^2.1.1",
                 "xhr2": "*",
                 "xmlhttprequest": "*"
-              },
-              "dependencies": {
-                "bignumber.js": {
-                  "version": "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
-                  "from": "bignumber.js@git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
-                  "dev": true
-                }
               }
             }
           }
@@ -14081,6 +14067,19 @@
             "underscore": "1.8.3",
             "web3-core-helpers": "1.0.0-beta.36",
             "websocket": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible"
+          },
+          "dependencies": {
+            "websocket": {
+              "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
+              "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
+              "dev": true,
+              "requires": {
+                "debug": "^2.2.0",
+                "nan": "^2.3.3",
+                "typedarray-to-buffer": "^3.1.2",
+                "yaeti": "^0.0.6"
+              }
+            }
           }
         },
         "web3-shh": {
@@ -14112,8 +14111,7 @@
         },
         "websocket": {
           "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
-          "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
-          "dev": true,
+          "from": "websocket@git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
           "requires": {
             "debug": "^2.2.0",
             "nan": "^2.3.3",
@@ -14124,9 +14122,9 @@
       }
     },
     "remixd": {
-      "version": "0.1.8-alpha.6",
-      "resolved": "https://registry.npmjs.org/remixd/-/remixd-0.1.8-alpha.6.tgz",
-      "integrity": "sha512-PXokbQPVWCOJab424J0V82jviSR/W5oaXILtE1zP7M1Fv9OKNQ0fp16sdgYUDlrKhjZn2YfUU5YEBkKLxZ3grw==",
+      "version": "0.1.8-alpha.7",
+      "resolved": "https://registry.npmjs.org/remixd/-/remixd-0.1.8-alpha.7.tgz",
+      "integrity": "sha512-PWGjvA577uY/CPNrHLl9AqjWeXiu7exraOgLzkSb6yOxIn1UHCJLn0095jYFFziXTm6RLx0hCUh4v02kVI1DtQ==",
       "requires": {
         "chokidar": "^2.0.2",
         "commander": "^2.9.0",
@@ -16434,9 +16432,9 @@
       },
       "dependencies": {
         "uuid": {
-          "version": "3.3.2",
-          "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
-          "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA=="
+          "version": "3.3.3",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.3.tgz",
+          "integrity": "sha512-pW0No1RGHgzlpHJO1nsVrHKpOEIxkGg1xB+v0ZmdNH5OAeAwzAVrCnI2/6Mtx+Uys6iaylxa+D3g4j63IKKjSQ=="
         }
       }
     },
@@ -17553,7 +17551,6 @@
           "version": "2.6.9",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
           "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
-          "dev": true,
           "requires": {
             "ms": "2.0.0"
           }
@@ -17613,8 +17610,7 @@
         "ms": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
-          "dev": true
+          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
         },
         "scrypt-js": {
           "version": "2.0.3",
@@ -17771,6 +17767,19 @@
             "underscore": "1.8.3",
             "web3-core-helpers": "1.0.0-beta.36",
             "websocket": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible"
+          },
+          "dependencies": {
+            "websocket": {
+              "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
+              "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
+              "dev": true,
+              "requires": {
+                "debug": "^2.2.0",
+                "nan": "^2.3.3",
+                "typedarray-to-buffer": "^3.1.2",
+                "yaeti": "^0.0.6"
+              }
+            }
           }
         },
         "web3-utils": {
@@ -17790,8 +17799,7 @@
         },
         "websocket": {
           "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
-          "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
-          "dev": true,
+          "from": "websocket@git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
           "requires": {
             "debug": "^2.2.0",
             "nan": "^2.3.3",
@@ -17882,6 +17890,21 @@
             "nan": "^2.3.3",
             "typedarray-to-buffer": "^3.1.2",
             "yaeti": "^0.0.6"
+          },
+          "dependencies": {
+            "typedarray-to-buffer": {
+              "version": "3.1.5",
+              "resolved": "https://registry.npmjs.org/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz",
+              "integrity": "sha512-zdu8XMNEDepKKR+XYOXAVPtWui0ly0NtohUscw+UmaHiAWT8hrV1rr//H6V+0DvJ3OQ19S979M0laLfX8rm82Q==",
+              "requires": {
+                "is-typedarray": "^1.0.0"
+              }
+            },
+            "yaeti": {
+              "version": "0.0.6",
+              "resolved": "https://registry.npmjs.org/yaeti/-/yaeti-0.0.6.tgz",
+              "integrity": "sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc="
+            }
           }
         }
       }
diff --git a/package.json b/package.json
index 38b8dcf35a..dea61e1b1b 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
     "remix-solidity": "0.3.10",
     "remix-tabs": "1.0.48",
     "remix-tests": "0.1.13",
-    "remixd": "0.1.8-alpha.6",
+    "remixd": "0.1.8-alpha.7",
     "request": "^2.83.0",
     "rimraf": "^2.6.1",
     "selenium-standalone": "^6.0.1",
@@ -76,7 +76,7 @@
   "dependencies": {
     "@remixproject/engine": "^0.1.14",
     "http-server": "^0.11.1",
-    "remixd": "0.1.8-alpha.6",
+    "remixd": "0.1.8-alpha.7",
     "standard": "^8.5.0"
   },
   "repository": {
@@ -152,7 +152,7 @@
     "build_debugger": "browserify src/app/debugger/remix-debugger/index.js -o src/app/debugger/remix-debugger/build/app.js",
     "browsertest": "sleep 5 && npm run nightwatch_local",
     "csslint": "csslint --ignore=order-alphabetical --errors='errors,duplicate-properties,empty-rules' --exclude-list='assets/css/font-awesome.min.css' assets/css/",
-    "downloadsolc_root": "wget --no-check-certificate https://solc-bin.ethereum.org/bin/soljson-v0.5.1+commit.c8a2cb62.js -O soljson.js",
+    "downloadsolc_root": "wget --no-check-certificate https://solc-bin.ethereum.org/bin/soljson-v0.5.10+commit.5a6ea5b1.js -O soljson.js",
     "lint": "standard | notify-error",
     "make-mock-compiler": "node ci/makeMockCompiler.js",
     "minify": "uglifyjs --in-source-map inline --source-map-inline -c warnings=false",
@@ -163,7 +163,7 @@
     "nightwatch_local_solidityImport": "nightwatch ./test-browser/tests/solidityImport.js --config nightwatch.js --env chrome ",
     "nightwatch_local_recorder": "nightwatch ./test-browser/tests/recorder.js --config nightwatch.js --env local ",
     "nightwatch_local_transactionExecution": "nightwatch ./test-browser/tests/transactionExecution.js --config nightwatch.js --env chrome ",
-    "nightwatch_local_staticAnalysis": "nightwatch ./test-browser/tests/staticanalysis.js --config nightwatch.js --env chrome ",
+    "nightwatch_local_staticAnalysis": "nightwatch ./test-browser/tests/staticAnalysis.js --config nightwatch.js --env chrome ",
     "nightwatch_local_signingMessage": "nightwatch ./test-browser/tests/signingMessage.js --config nightwatch.js --env chrome ",
     "nightwatch_local_remixd": "nightwatch ./test-browser/tests/remix.js --config nightwatch.js --env chrome ",
     "nightwatch_local_console": "nightwatch ./test-browser/tests/console.js --config nightwatch.js --env chrome ",
diff --git a/src/app/tabs/compileTab/compilerContainer.js b/src/app/tabs/compileTab/compilerContainer.js
index 0ab96627f7..cba62be932 100644
--- a/src/app/tabs/compileTab/compilerContainer.js
+++ b/src/app/tabs/compileTab/compilerContainer.js
@@ -23,7 +23,7 @@ class CompilerContainer {
       timeout: 300,
       allversions: null,
       selectedVersion: null,
-      defaultVersion: 'soljson-v0.5.1+commit.c8a2cb62.js', // this default version is defined: in makeMockCompiler (for browser test) and in package.json (downloadsolc_root) for the builtin compiler
+      defaultVersion: 'soljson-v0.5.10+commit.5a6ea5b1.js', // this default version is defined: in makeMockCompiler (for browser test) and in package.json (downloadsolc_root) for the builtin compiler
       baseurl: 'https://solc-bin.ethereum.org/bin'
     }
   }
diff --git a/test-browser/tests/ballot.js b/test-browser/tests/ballot.js
index ccabfb1646..b553fc6319 100644
--- a/test-browser/tests/ballot.js
+++ b/test-browser/tests/ballot.js
@@ -36,7 +36,7 @@ module.exports = {
     .clickLaunchIcon('debugger')
     .click('#jumppreviousbreakpoint')
     .pause(2000)
-    .goToVMTraceStep(59)
+    .goToVMTraceStep(58)
     .pause(1000)
     .checkVariableDebug('soliditystate', stateCheck)
     .checkVariableDebug('soliditylocals', localsCheck)
diff --git a/test-browser/tests/signingMessage.js b/test-browser/tests/signingMessage.js
index 49dda59ace..0e4f49d4d6 100644
--- a/test-browser/tests/signingMessage.js
+++ b/test-browser/tests/signingMessage.js
@@ -48,6 +48,7 @@ module.exports = {
 var sources = [
   {
     'browser/signMassage.sol': {content: `
+    pragma solidity >=0.4.22 <0.6.0;
     contract SignMassageTest {
       function testRecovery(bytes32 h, uint8 v, bytes32 r, bytes32 s) public pure returns (address) {
           return ecrecover(h, v, r, s);
diff --git a/test-browser/tests/staticAnalysis.js b/test-browser/tests/staticAnalysis.js
index bf9b4dba9b..5c98acd187 100644
--- a/test-browser/tests/staticAnalysis.js
+++ b/test-browser/tests/staticAnalysis.js
@@ -5,6 +5,7 @@ var sauce = require('./sauce')
 var sources = [
   {
     'browser/Untitled.sol': {content: `
+pragma solidity >=0.4.22 <0.6.0;
 contract test1 { address test = tx.origin; }
 contract test2 {}
 contract TooMuchGas {