diff --git a/package.json b/package.json
index dce82c6..0bf9ada 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
     "rxjs": "^5.4.1",
     "shx": "^0.2.2",
     "sinon": "^2.3.5",
-    "sinon-chai": "^2.11.0",
+    "sinon-chai": "^3.2.0",
     "source-map-loader": "^0.2.1",
     "style-loader": "^0.18.2",
     "tman": "^1.6.9",