diff --git a/package.json b/package.json
index fcb0195..36055b5 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
     "isparta": "^4.0.0",
     "run-sequence": "^1.2.2",
     "sinon": "^1.17.6",
-    "sinon-chai": "^2.8.0"
+    "sinon-chai": "^2.9.0"
   },
   "standard": {
     "globals": [