diff --git a/package.json b/package.json
index 73eb010..a9ce7c5 100644
--- a/package.json
+++ b/package.json
@@ -36,6 +36,6 @@
     "proxyquire": "^1.7.10",
     "rimraf": "^2.5.4",
     "sinon": "^1.17.6",
-    "sinon-chai": "^2.8.0"
+    "sinon-chai": "^2.9.0"
   }
 }