diff --git a/package.json b/package.json
index 807cb78..e516aad 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "grunt-contrib-coffee": "0.11.1",
     "grunt-contrib-uglify": "0.6.0",
     "grunt-contrib-watch": "0.6.1",
-    "grunt-mocha-phantomjs": "0.6.2",
+    "grunt-mocha-phantomjs": "4.0.0",
     "grunt-noflo-browser": "0.1.11",
     "html-minifier": "0.8.0",
     "mocha": "2.3.3"