diff --git a/package.json b/package.json
index e9465634c9..94c6738698 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "fs-extra": "^3.0.1",
     "isbinaryfile": "^3.0.2",
     "lerna": "^2.9.0",
-    "serve": "^7.0.0",
+    "serve": "7.0.0",
     "stdout": "0.0.3",
     "watch": "^1.0.2",
     "web3": "1.0.0-beta.27",