diff --git a/package.json b/package.json
index c3abcea..d2b30bf 100644
--- a/package.json
+++ b/package.json
@@ -180,7 +180,7 @@
     "karma-jspm": "^2.1.0",
     "karma-mocha": "^0.2.0",
     "karma-sinon": "^1.0.4",
-    "karma-sinon-chai": "^1.2.0",
+    "karma-sinon-chai": "^1.3.0",
     "lolex": "^1.4.0",
     "mocha": "^2.3.3",
     "opn": "^4.0.1",