diff --git a/package.json b/package.json
index 8f6784a..1b82d75 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "eslint-config-airbnb-base": "^11.1.3",
     "eslint-plugin-import": "^2.2.0",
     "json-loader": "^0.5.4",
-    "ethereumjs-testrpc": "^3.0.3",
+    "ethereumjs-testrpc": "^4.0.0",
     "solc": "^0.4.10",
     "solium": "^0.2.2"
   }