diff --git a/package.json b/package.json
index 6c00018..b74db8a 100644
--- a/package.json
+++ b/package.json
@@ -58,6 +58,6 @@
     "proxyquire": "1.7.11",
     "sinon": "1.17.7",
     "sinon-as-promised": "4.0.3",
-    "sinon-chai": "2.8.0"
+    "sinon-chai": "2.9.0"
   }
 }