diff --git a/package.json b/package.json
index 4323a103..0d4001d2 100644
--- a/package.json
+++ b/package.json
@@ -76,7 +76,7 @@
     "rollup-plugin-babel": "3.0.2",
     "rollup-plugin-replace": "2.0.0",
     "rollup-plugin-uglify": "2.0.1",
-    "sinon": "3.3.0"
+    "sinon": "4.0.0"
   },
   "license": "MIT"
 }