diff --git a/package.json b/package.json
index d8e429a..2619716 100644
--- a/package.json
+++ b/package.json
@@ -30,11 +30,11 @@
     "chai": "^4.1.2",
     "chai-as-promised": "^7.1.1",
     "dirty-chai": "^2.0.1",
-    "sinon": "^2.1.0",
+    "sinon": "^11.1.1",
     "sinon-chai": "^2.14.0"
   },
   "devDependencies": {
     "mocha": "^5.0.1",
-    "sinon": "^4.3.0"
+    "sinon": "^11.1.1"
   }
 }