diff --git a/src/blockchain/pluginUDapp.js b/src/blockchain/pluginUDapp.js
index dec4b51d1d..93c2f9e369 100644
--- a/src/blockchain/pluginUDapp.js
+++ b/src/blockchain/pluginUDapp.js
@@ -9,8 +9,8 @@ class PluginUdapp {
   }
 
   setupEvents () {
-    this.blockchain.event.register('newTransaction', (tx, receipt) => {
-      this.events.trigger('newTransaction', [tx, receipt])
+    this.blockchain.events.on('newTransaction', (tx, receipt) => {
+      this.events.emit('newTransaction', tx, receipt)
     })
   }
 
diff --git a/test-browser/tests/remixd.js b/test-browser/tests/remixd.js
index e4878526eb..5c12b1bf25 100644
--- a/test-browser/tests/remixd.js
+++ b/test-browser/tests/remixd.js
@@ -65,6 +65,7 @@ module.exports = {
       .clickLaunchIcon('fileExplorers')
       .addFile('test_import_node_modules_with_github_import.sol', sources[4]['browser/test_import_node_modules_with_github_import.sol'])
       .clickLaunchIcon('solidity')
+      .setSolidityCompilerVersion('soljson-v0.6.2+commit.bacdbe57.js') // open-zeppelin moved to pragma ^0.6.0
       .testContracts('test_import_node_modules_with_github_import.sol', sources[4]['browser/test_import_node_modules_with_github_import.sol'], ['ERC20', 'test11'])
       .clickLaunchIcon('pluginManager')
       .scrollAndClick('#pluginManager article[id="remixPluginManagerListItem_remixd"] button')
diff --git a/test-browser/tests/solidityImport.js b/test-browser/tests/solidityImport.js
index 1ebb429396..ad871dde8e 100644
--- a/test-browser/tests/solidityImport.js
+++ b/test-browser/tests/solidityImport.js
@@ -27,7 +27,7 @@ module.exports = {
 
   'Test Github Import - from master branch': function (browser) {
     browser
-          .setSolidityCompilerVersion('soljson-v0.5.0+commit.1d4f565a.js')
+          .setSolidityCompilerVersion('soljson-v0.6.2+commit.bacdbe57.js') // open-zeppelin moved to pragma ^0.6.0 (master branch)
           .addFile('Untitled4.sol', sources[3]['browser/Untitled4.sol'])
           .clickLaunchIcon('fileExplorers')
           .verifyContracts(['test7', 'ERC20', 'SafeMath'], {wait: 10000})
@@ -35,6 +35,7 @@ module.exports = {
 
   'Test Github Import - from other branch': function (browser) {
     browser
+          .setSolidityCompilerVersion('soljson-v0.5.0+commit.1d4f565a.js') // switch back to 0.5.0 : release-v2.3.0 branch is not solidity 0.6 compliant
           .addFile('Untitled5.sol', sources[4]['browser/Untitled5.sol'])
           .clickLaunchIcon('fileExplorers')
           .verifyContracts(['test8', 'ERC20', 'SafeMath'], {wait: 10000})
@@ -42,6 +43,7 @@ module.exports = {
 
   'Test Github Import - no branch specified': function (browser) {
     browser
+          .setSolidityCompilerVersion('soljson-v0.6.2+commit.bacdbe57.js') // open-zeppelin moved to pragma ^0.6.0 (master branch)
           .addFile('Untitled6.sol', sources[5]['browser/Untitled6.sol'])
           .clickLaunchIcon('fileExplorers')
           .verifyContracts(['test10', 'ERC20', 'SafeMath'], {wait: 10000})