diff --git a/package.json b/package.json
index b668359b2..0991b5c93 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "secp256k1": "secp256k1/js"
   },
   "dependencies": {
-    "async": "^1.5.2",
+    "async": "^3.2.2",
     "bip38": "^1.4.0",
     "bitcore-lib": "^0.13.14",
     "bitcore-mnemonic": "~1.0.0",
@@ -51,10 +51,10 @@
     "grunt": "^1.0.1",
     "grunt-angular-gettext": "^2.2.3",
     "grunt-browserify": "^5.0.0",
-    "grunt-contrib-compress": "^1.3.0",
+    "grunt-contrib-compress": "^2.0.0",
     "grunt-contrib-concat": "^1.0.1",
     "grunt-contrib-copy": "^1.0.0",
-    "grunt-contrib-uglify": "^1.0.1",
+    "grunt-contrib-uglify": "^2.2.0",
     "grunt-contrib-watch": "^1.0.0",
     "grunt-exec": "^1.0.0",
     "jszip": "^3.1.3",