diff --git a/package.json b/package.json
index fbd500d75..e996b4036 100644
--- a/package.json
+++ b/package.json
@@ -151,7 +151,7 @@
     "nyc": "11.0.2",
     "qrcode-terminal": "0.11.0",
     "shx": "0.2.2",
-    "sinon": "2.3.3",
+    "sinon": "2.3.5",
     "sloc": "0.2.0",
     "ts-node": "3.0.6",
     "tslint": "5.3.x",