diff --git a/remix-debug/package-lock.json b/remix-debug/package-lock.json
index dc6eefaf1e..6d3d6b7ceb 100644
--- a/remix-debug/package-lock.json
+++ b/remix-debug/package-lock.json
@@ -1,6 +1,6 @@
 {
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@@ -4480,70 +4467,23 @@
         }
       }
     },
-    "remix-lib": {
-      "version": "0.4.12",
-      "resolved": "https://registry.npmjs.org/remix-lib/-/remix-lib-0.4.12.tgz",
-      "integrity": "sha512-OlYn8NFxUGJg5gGqId4lw9mrRid+eu7MGCqQv/1gvin1ZAZQla+0xX8y02RB0PDTMmhn+1jzManYns+h7mLoOg==",
-      "requires": {
-        "async": "^2.1.2",
-        "ethereumjs-block": "^1.6.0",
-        "ethereumjs-tx": "^1.3.3",
-        "ethereumjs-util": "^5.1.2",
-        "ethereumjs-vm": "3.0.0",
-        "ethers": "^4.0.27",
-        "events": "^3.0.0",
-        "fast-async": "^6.1.2",
-        "solc": "^0.5.0",
-        "web3": "0.20.6"
-      },
-      "dependencies": {
-        "ethereum-common": {
-          "version": "0.2.0",
-          "resolved": "https://registry.npmjs.org/ethereum-common/-/ethereum-common-0.2.0.tgz",
-          "integrity": "sha512-XOnAR/3rntJgbCdGhqdaLIxDLWKLmsZOGhHdBKadEr6gEnJLH52k93Ou+TUdFaPN3hJc3isBZBal3U/XZ15abA=="
-        },
-        "ethereumjs-block": {
-          "version": "1.7.1",
-          "resolved": "https://registry.npmjs.org/ethereumjs-block/-/ethereumjs-block-1.7.1.tgz",
-          "integrity": "sha512-B+sSdtqm78fmKkBq78/QLKJbu/4Ts4P2KFISdgcuZUPDm9x+N7qgBPIIFUGbaakQh8bzuquiRVbdmvPKqbILRg==",
-          "requires": {
-            "async": "^2.0.1",
-            "ethereum-common": "0.2.0",
-            "ethereumjs-tx": "^1.2.2",
-            "ethereumjs-util": "^5.0.0",
-            "merkle-patricia-tree": "^2.1.2"
-          }
-        },
-        "ethereumjs-util": {
-          "version": "5.2.0",
-          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
-          "integrity": "sha512-CJAKdI0wgMbQFLlLRtZKGcy/L6pzVRgelIZqRqNbuVFM3K9VEnyfbcvz0ncWMRNCe4kaHWjwRYQcYMucmwsnWA==",
-          "requires": {
-            "bn.js": "^4.11.0",
-            "create-hash": "^1.1.2",
-            "ethjs-util": "^0.1.3",
-            "keccak": "^1.0.2",
-            "rlp": "^2.0.0",
-            "safe-buffer": "^5.1.1",
-            "secp256k1": "^3.0.1"
-          }
-        }
-      }
-    },
     "require-directory": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
-      "integrity": "sha1-jGStX9MNqxyXbiNE/+f3kqam30I="
+      "integrity": "sha1-jGStX9MNqxyXbiNE/+f3kqam30I=",
+      "dev": true
     },
     "require-from-string": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz",
-      "integrity": "sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw=="
+      "integrity": "sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==",
+      "dev": true
     },
     "require-main-filename": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-2.0.0.tgz",
-      "integrity": "sha512-NKN5kMDylKuldxYLSUfrbo5Tuzh4hd+2E8NPPX02mZtn1VuREQToYe/ZdlJy+J3uCpfaiGF05e7B8W0iXbQHmg=="
+      "integrity": "sha512-NKN5kMDylKuldxYLSUfrbo5Tuzh4hd+2E8NPPX02mZtn1VuREQToYe/ZdlJy+J3uCpfaiGF05e7B8W0iXbQHmg==",
+      "dev": true
     },
     "require-uncached": {
       "version": "1.0.3",
@@ -4593,6 +4533,7 @@
       "version": "2.7.1",
       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.7.1.tgz",
       "integrity": "sha512-uWjbaKIK3T1OSVptzX7Nl6PvQ3qAGtKEtVRjRuazjfL3Bx5eI409VZSqgND+4UNnmzLVdPj9FqFJNPqBZFve4w==",
+      "dev": true,
       "requires": {
         "glob": "^7.1.3"
       }
@@ -4646,11 +4587,6 @@
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.0.tgz",
       "integrity": "sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg=="
     },
-    "scrypt-js": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-2.0.4.tgz",
-      "integrity": "sha512-4KsaGcPnuhtCZQCxFxN3GVYIhKFPTdLd8PLC552XwbMndtD0cjRFAhDuuydXQ0h08ZfPgzqe6EKHozpuH74iDw=="
-    },
     "secp256k1": {
       "version": "3.7.1",
       "resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-3.7.1.tgz",
@@ -4686,12 +4622,8 @@
     "set-blocking": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
-      "integrity": "sha1-BF+XgtARrppoA93TgrJDkrPYkPc="
-    },
-    "setimmediate": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.4.tgz",
-      "integrity": "sha1-IOgd5iLUoCWIzgyNqJc8vPHTE48="
+      "integrity": "sha1-BF+XgtARrppoA93TgrJDkrPYkPc=",
+      "dev": true
     },
     "sha.js": {
       "version": "2.4.11",
@@ -4732,6 +4664,7 @@
       "version": "0.5.11",
       "resolved": "https://registry.npmjs.org/solc/-/solc-0.5.11.tgz",
       "integrity": "sha512-F8avCCVDYnJzvIm/ITsU11GFNdFI4HaNsME+zw9lK5a3ojD3LZN2Op2cIfWg7w1HeRYRiMOU1dM77saX6jUIKw==",
+      "dev": true,
       "requires": {
         "command-exists": "^1.2.8",
         "fs-extra": "^0.30.0",
@@ -4746,12 +4679,14 @@
         "js-sha3": {
           "version": "0.8.0",
           "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.8.0.tgz",
-          "integrity": "sha512-gF1cRrHhIzNfToc802P800N8PpXS+evLLXfsVpowqmAFR9uwbi89WvXg2QspOmXL8QL86J4T1EpFu+yUkwJY3Q=="
+          "integrity": "sha512-gF1cRrHhIzNfToc802P800N8PpXS+evLLXfsVpowqmAFR9uwbi89WvXg2QspOmXL8QL86J4T1EpFu+yUkwJY3Q==",
+          "dev": true
         },
         "semver": {
           "version": "5.7.1",
           "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
-          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ=="
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
+          "dev": true
         }
       }
     },
@@ -4872,6 +4807,7 @@
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
       "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+      "dev": true,
       "requires": {
         "emoji-regex": "^7.0.1",
         "is-fullwidth-code-point": "^2.0.0",
@@ -4918,6 +4854,7 @@
       "version": "5.2.0",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
       "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+      "dev": true,
       "requires": {
         "ansi-regex": "^4.1.0"
       }
@@ -5141,6 +5078,7 @@
       "version": "0.0.33",
       "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.33.tgz",
       "integrity": "sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==",
+      "dev": true,
       "requires": {
         "os-tmpdir": "~1.0.2"
       }
@@ -5231,11 +5169,6 @@
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
     },
-    "uuid": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-2.0.1.tgz",
-      "integrity": "sha1-wqMN7bPlNdcsz4LjQ5QaULqFM6w="
-    },
     "web3": {
       "version": "0.20.6",
       "resolved": "https://registry.npmjs.org/web3/-/web3-0.20.6.tgz",
@@ -5260,7 +5193,8 @@
     "which-module": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
-      "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho="
+      "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
+      "dev": true
     },
     "wordwrap": {
       "version": "1.0.0",
@@ -5272,6 +5206,7 @@
       "version": "5.1.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-5.1.0.tgz",
       "integrity": "sha512-QC1/iN/2/RPVJ5jYK8BGttj5z83LmSKmvbvrXPNCLZSEb32KKVDJDl/MOt2N01qU2H/FkzEa9PKto1BqDjtd7Q==",
+      "dev": true,
       "requires": {
         "ansi-styles": "^3.2.0",
         "string-width": "^3.0.0",
@@ -5281,7 +5216,8 @@
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
     },
     "write": {
       "version": "0.2.1",
@@ -5313,7 +5249,8 @@
     "y18n": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
-      "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w=="
+      "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
+      "dev": true
     },
     "yallist": {
       "version": "3.0.3",
@@ -5324,6 +5261,7 @@
       "version": "13.3.0",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.0.tgz",
       "integrity": "sha512-2eehun/8ALW8TLoIl7MVaRUrg+yCnenu8B4kBlRxj3GJGDKU1Og7sMXPNm1BYyM1DOJmTZ4YeN/Nwxv+8XJsUA==",
+      "dev": true,
       "requires": {
         "cliui": "^5.0.0",
         "find-up": "^3.0.0",
@@ -5341,6 +5279,7 @@
       "version": "13.1.1",
       "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.1.tgz",
       "integrity": "sha512-oVAVsHz6uFrg3XQheFII8ESO2ssAf9luWuAd6Wexsu4F3OtIW0o8IribPXYrD4WC24LWtPrJlGy87y5udK+dxQ==",
+      "dev": true,
       "requires": {
         "camelcase": "^5.0.0",
         "decamelize": "^1.2.0"
diff --git a/remix-debug/package.json b/remix-debug/package.json
index 9beb779205..1f51eb1b49 100644
--- a/remix-debug/package.json
+++ b/remix-debug/package.json
@@ -19,7 +19,7 @@
   "main": "./index.js",
   "dependencies": {
     "commander": "^2.19.0",
-    "ethereumjs-util": "^4.5.0",
+    "ethereumjs-util": "^6.1.0",
     "ethereumjs-vm": "3.0.0",
     "fast-async": "^6.1.2",
     "remix-lib": "0.4.14",
diff --git a/remix-lib/package-lock.json b/remix-lib/package-lock.json
index 89fa6c309c..0f97352be1 100644
--- a/remix-lib/package-lock.json
+++ b/remix-lib/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "remix-lib",
-  "version": "0.4.12",
+  "version": "0.4.14",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -2687,6 +2687,22 @@
         "ethereumjs-util": "^5.0.0",
         "rlp": "^2.0.0",
         "safe-buffer": "^5.1.1"
+      },
+      "dependencies": {
+        "ethereumjs-util": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
+          "integrity": "sha512-CJAKdI0wgMbQFLlLRtZKGcy/L6pzVRgelIZqRqNbuVFM3K9VEnyfbcvz0ncWMRNCe4kaHWjwRYQcYMucmwsnWA==",
+          "requires": {
+            "bn.js": "^4.11.0",
+            "create-hash": "^1.1.2",
+            "ethjs-util": "^0.1.3",
+            "keccak": "^1.0.2",
+            "rlp": "^2.0.0",
+            "safe-buffer": "^5.1.1",
+            "secp256k1": "^3.0.1"
+          }
+        }
       }
     },
     "ethereumjs-block": {
@@ -2699,6 +2715,22 @@
         "ethereumjs-tx": "^1.2.2",
         "ethereumjs-util": "^5.0.0",
         "merkle-patricia-tree": "^2.1.2"
+      },
+      "dependencies": {
+        "ethereumjs-util": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
+          "integrity": "sha512-CJAKdI0wgMbQFLlLRtZKGcy/L6pzVRgelIZqRqNbuVFM3K9VEnyfbcvz0ncWMRNCe4kaHWjwRYQcYMucmwsnWA==",
+          "requires": {
+            "bn.js": "^4.11.0",
+            "create-hash": "^1.1.2",
+            "ethjs-util": "^0.1.3",
+            "keccak": "^1.0.2",
+            "rlp": "^2.0.0",
+            "safe-buffer": "^5.1.1",
+            "secp256k1": "^3.0.1"
+          }
+        }
       }
     },
     "ethereumjs-blockchain": {
@@ -2780,17 +2812,31 @@
           "version": "0.0.18",
           "resolved": "https://registry.npmjs.org/ethereum-common/-/ethereum-common-0.0.18.tgz",
           "integrity": "sha1-L9w1dvIykDNYl26znaeDIT/5Uj8="
+        },
+        "ethereumjs-util": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
+          "integrity": "sha512-CJAKdI0wgMbQFLlLRtZKGcy/L6pzVRgelIZqRqNbuVFM3K9VEnyfbcvz0ncWMRNCe4kaHWjwRYQcYMucmwsnWA==",
+          "requires": {
+            "bn.js": "^4.11.0",
+            "create-hash": "^1.1.2",
+            "ethjs-util": "^0.1.3",
+            "keccak": "^1.0.2",
+            "rlp": "^2.0.0",
+            "safe-buffer": "^5.1.1",
+            "secp256k1": "^3.0.1"
+          }
         }
       }
     },
     "ethereumjs-util": {
-      "version": "5.2.0",
-      "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
-      "integrity": "sha512-CJAKdI0wgMbQFLlLRtZKGcy/L6pzVRgelIZqRqNbuVFM3K9VEnyfbcvz0ncWMRNCe4kaHWjwRYQcYMucmwsnWA==",
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.1.0.tgz",
+      "integrity": "sha512-URESKMFbDeJxnAxPppnk2fN6Y3BIatn9fwn76Lm8bQlt+s52TpG8dN9M66MLPuRAiAOIqL3dfwqWJf0sd0fL0Q==",
       "requires": {
         "bn.js": "^4.11.0",
         "create-hash": "^1.1.2",
-        "ethjs-util": "^0.1.3",
+        "ethjs-util": "0.1.6",
         "keccak": "^1.0.2",
         "rlp": "^2.0.0",
         "safe-buffer": "^5.1.1",
@@ -3803,6 +3849,20 @@
           "version": "1.5.2",
           "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
           "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo="
+        },
+        "ethereumjs-util": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
+          "integrity": "sha512-CJAKdI0wgMbQFLlLRtZKGcy/L6pzVRgelIZqRqNbuVFM3K9VEnyfbcvz0ncWMRNCe4kaHWjwRYQcYMucmwsnWA==",
+          "requires": {
+            "bn.js": "^4.11.0",
+            "create-hash": "^1.1.2",
+            "ethjs-util": "^0.1.3",
+            "keccak": "^1.0.2",
+            "rlp": "^2.0.0",
+            "safe-buffer": "^5.1.1",
+            "secp256k1": "^3.0.1"
+          }
         }
       }
     },
diff --git a/remix-lib/package.json b/remix-lib/package.json
index 7af0f811c4..5506fa2351 100644
--- a/remix-lib/package.json
+++ b/remix-lib/package.json
@@ -17,7 +17,7 @@
     "async": "^2.1.2",
     "ethereumjs-block": "^1.6.0",
     "ethereumjs-tx": "^1.3.3",
-    "ethereumjs-util": "^5.1.2",
+    "ethereumjs-util": "^6.1.0",
     "ethereumjs-vm": "3.0.0",
     "ethers": "^4.0.27",
     "events": "^3.0.0",
diff --git a/remix-lib/src/execution/execution-context.js b/remix-lib/src/execution/execution-context.js
index 9e4ffd8d2f..79eece0482 100644
--- a/remix-lib/src/execution/execution-context.js
+++ b/remix-lib/src/execution/execution-context.js
@@ -34,7 +34,7 @@ class StateManagerCommonStorageDump extends StateManager {
   }
 
   putContractStorage (address, key, value, cb) {
-    this.keyHashes[ethUtil.sha3(key).toString('hex')] = ethUtil.bufferToHex(key)
+    this.keyHashes[ethUtil.keccak(key).toString('hex')] = ethUtil.bufferToHex(key)
     super.putContractStorage(address, key, value, cb)
   }
 
diff --git a/remix-lib/src/util.js b/remix-lib/src/util.js
index 04899c29c2..4bb0396119 100644
--- a/remix-lib/src/util.js
+++ b/remix-lib/src/util.js
@@ -162,7 +162,7 @@ module.exports = {
       value = '0x' + value
     }
     var ret = ethutil.bufferToHex(ethutil.setLengthLeft(value, 32))
-    ret = ethutil.sha3(ret)
+    ret = ethutil.keccak(ret)
     return ethutil.bufferToHex(ret)
   },
 
diff --git a/remix-simulator/package-lock.json b/remix-simulator/package-lock.json
index 7426977421..56dbbfdac2 100644
--- a/remix-simulator/package-lock.json
+++ b/remix-simulator/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "remix-simulator",
-  "version": "0.1.9-alpha.5",
+  "version": "0.1.9-alpha.7",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -1760,15 +1760,11 @@
         "ansi-wrap": "0.1.0"
       }
     },
-    "ansi-regex": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
-      "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg=="
-    },
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       "version": "3.2.1",
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diff --git a/remix-simulator/package.json b/remix-simulator/package.json
index cd538ee6cb..6542cb3a18 100644
--- a/remix-simulator/package.json
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diff --git a/remix-solidity/package-lock.json b/remix-solidity/package-lock.json
index f34eb02d37..ca43501bd6 100644
--- a/remix-solidity/package-lock.json
+++ b/remix-solidity/package-lock.json
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@@ -4686,33 +4572,11 @@
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diff --git a/remix-solidity/package.json b/remix-solidity/package.json
index 045faaa2ff..fd1498a134 100644
--- a/remix-solidity/package.json
+++ b/remix-solidity/package.json
@@ -14,7 +14,7 @@
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