diff --git a/package.json b/package.json
index 793638d..1525d00 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "@types/expect": "1.20.0",
     "@types/mocha": "2.2.39",
     "@types/node": "7.0.5",
-    "@types/sinon-chai": "2.7.27",
+    "@types/sinon-chai": "2.7.28",
     "awesome-typescript-loader": "3.1.2",
     "bore": "2.0.1",
     "commitizen": "2.9.6",