diff --git a/package.json b/package.json
index 716031d..3c17964 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "coveralls": "^3.0.0",
     "express": "^4.16.3",
     "istanbul": "^0.4.5",
-    "mocha": "^5.0.5",
+    "mocha": "5.0.5",
     "unexpected": "^10.37.2",
     "unexpected-express": "^10.0.0",
     "unexpected-messy": "^7.4.1"