diff --git a/package.json b/package.json
index 084d495e..82887e15 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
         "proxyquire": "^2.0.1",
         "pushbullet": "~2.2.0",
         "should": "^13.2.1",
-        "sinon": "^5.0.2",
+        "sinon": "^1.17.7",
         "supertest": "^3.0.0",
         "when": "^3.7.8"
     },