Merge pull request #2746 from ethereum/issue/2744

build and test tools updated

Author: nivida

package-lock.json

@@ -73,18 +73,18 @@
         }
     ],
     "devDependencies": {
-        "@babel/core": "^7.4.0",
+        "@babel/core": "^7.4.4",
         "@babel/plugin-proposal-export-default-from": "^7.2.0",
         "@babel/plugin-proposal-export-namespace-from": "^7.2.0",
         "@babel/plugin-transform-runtime": "^7.4.0",
         "@babel/polyfill": "^7.4.0",
-        "@babel/preset-env": "^7.4.2",
+        "@babel/preset-env": "^7.4.4",
         "@babel/runtime": "^7.4.2",
         "@types/bn.js": "^4.11.5",
         "@types/node": "^11.13.0",
         "babel-core": "^7.0.0-bridge.0",
         "babel-eslint": "^10.0.1",
-        "babel-jest": "^24.6.0",
+        "babel-jest": "^24.7.1",
         "babel-plugin-istanbul": "^5.1.1",
         "coveralls": "^3.0.3",
         "eslint": "^5.16.0",
@@ -98,8 +98,8 @@
         "eslint-plugin-standard": "^4.0.0",
         "eslint-plugin-unicorn": "^8.0.1",
         "istanbul-combine": "^0.3.0",
-        "jest": "^24.6.0",
-        "lerna": "^3.13.1",
+        "jest": "^24.7.1",
+        "lerna": "^3.13.4",
         "prettier": "^1.16.4",
         "regenerator-runtime": "^0.13.2",
         "rollup": "^1.8.0",