diff --git a/js/package.json b/js/package.json
index 924191ee3..908a5fbd6 100644
--- a/js/package.json
+++ b/js/package.json
@@ -148,6 +148,7 @@
     "stylelint": "7.9.0",
     "stylelint-config-standard": "16.0.0",
     "to-source": "2.0.3",
+    "uglify-js": "2.8.16",
     "url-loader": "0.5.7",
     "webpack": "2.2.1",
     "webpack-bundle-size-analyzer": "2.5.0",
@@ -179,7 +180,6 @@
     "geopattern": "1.2.3",
     "isomorphic-fetch": "2.2.1",
     "js-sha3": "0.5.5",
-    "keythereum": "0.4.6",
     "lodash": "4.17.2",
     "loglevel": "1.4.1",
     "marked": "0.3.6",
@@ -217,13 +217,11 @@
     "redux-thunk": "2.1.0",
     "rlp": "2.0.0",
     "scryptsy": "2.0.0",
-    "secp256k1": "3.2.5",
     "solc": "ngotchac/solc-js",
     "store": "1.3.20",
     "sw-toolbox": "^3.6.0",
     "u2f-api": "0.0.9",
     "u2f-api-polyfill": "0.4.3",
-    "uglify-js": "2.8.16",
     "useragent.js": "0.5.6",
     "utf8": "2.1.2",
     "valid-url": "1.0.9",
diff --git a/js/src/abi/package.json b/js/src/abi/package.json
index b09f52c03..7567370fe 100644
--- a/js/src/abi/package.json
+++ b/js/src/abi/package.json
@@ -23,7 +23,7 @@
   "devDependencies": {
   },
   "dependencies": {
-    "bignumber.js": "~2.3.0",
-    "js-sha3": "~0.5.2"
+    "bignumber.js": "3.0.1",
+    "js-sha3": "0.5.5"
   }
 }
diff --git a/js/src/api/package.json b/js/src/api/package.json
index f544ffe4f..bb0898704 100644
--- a/js/src/api/package.json
+++ b/js/src/api/package.json
@@ -27,9 +27,12 @@
   "dependencies": {
     "@parity/abi": "file:../abi",
     "@parity/jsonrpc": "file:../jsonrpc",
-    "bignumber.js": "~2.3.0",
+    "bignumber.js": "3.0.1",
+    "ethereumjs-tx": "1.2.5",
     "eventemitter3": "2.0.2",
-    "js-sha3": "~0.5.2",
-    "node-fetch": "~1.6.3"
+    "js-sha3": "0.5.5",
+    "keythereum": "0.4.6",
+    "node-fetch": "1.6.3",
+    "secp256k1": "3.2.5"
   }
 }