diff --git a/package.json b/package.json
index d771876d..429e2503 100644
--- a/package.json
+++ b/package.json
@@ -15,8 +15,8 @@
     "test": "mocha --recursive test"
   },
   "devDependencies": {
-    "lodash": "^2.4.1",
-    "mocha": "^1.21.3",
-    "zombie": "^2.0.0-alpha31"
+    "lodash": "~2.4.1",
+    "mocha": "~1.21.3",
+    "zombie": "~2.0.0-alpha31"
   }
 }