diff --git a/package.json b/package.json
index 80f85e494a..0609abbe2b 100644
--- a/package.json
+++ b/package.json
@@ -78,7 +78,7 @@
     "gulp-typescript": "3.2.1",
     "gulp-uglify": "3.0.0",
     "gulp-util": "3.0.8",
-    "mocha": "3.4.2",
+    "mocha": "3.5.0",
     "riot-tag-loader": "1.0.0",
     "string-replace-webpack-plugin": "0.1.3",
     "style-loader": "0.18.2",