diff --git a/package.json b/package.json
index b655b9c..c660927 100644
--- a/package.json
+++ b/package.json
@@ -104,7 +104,7 @@
     "karma-mocha-reporter": "2.2.5",
     "karma-phantomjs-launcher": "1.0.4",
     "karma-sauce-launcher": "1.2.0",
-    "karma-sinon-chai": "1.3.3",
+    "karma-sinon-chai": "1.3.4",
     "karma-sourcemap-loader": "0.3.7",
     "karma-webpack": "2.0.5",
     "leakage": "0.3.0",