diff --git a/package.json b/package.json
index 3b60a5c..4fe4374 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
   "dependencies": {
     "express": "3.x",
     "socket.io": "0.9.x",
-    "underscore": "^1.8.3"
+    "underscore": "1.8.x"
   },
   "devDependencies": {
     "browserify": "~11.0.1"