diff --git a/package.json b/package.json
index c21d60f..70fa77c 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   },
   "devDependencies": {
     "nock": "^9.0.2",
-    "sinon": "^4.1.1",
+    "sinon": "^4.1.5",
     "tap": "^11.0.0",
     "unroll": "1.4.0"
   },