diff --git a/package.json b/package.json
index 863aac1..391eec7 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "jasmine-core": "^2.8.0",
     "jquery": "^3.2.1",
     "karma": "^1.7.1",
-    "karma-browserify": "^5.1.1",
+    "karma-browserify": "5.1.1",
     "karma-coverage": "^1.1.1",
     "karma-jasmine": "^1.1.0",
     "karma-jasmine-ajax": "^0.1.13",