diff --git a/package.json b/package.json
index 6bd7a1c..85feda3 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
     "nock": "7.7.3",
     "node-slack-upload": "1.2.1",
     "sinon": "1.17.7",
-    "sinon-chai": "2.14.0"
+    "sinon-chai": "3.6.0"
   },
   "contributors": [
     "Eugenio Romano <> (http://eromano.github.io/)"