diff --git a/package.json b/package.json
index 6676b2b3c..d93b30281 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "chai": "~1.4",
     "sinon": "~1.6",
     "sinon-chai": "~2.3.1",
-    "happen": "~0.1.2",
+    "happen": "0.1.2",
     "glob": "~3.1.21",
     "js-yaml": "~2.0.3",
     "request": "~2.16.2",