diff --git a/package.json b/package.json
index f0e740b359..9b50eb7cf9 100644
--- a/package.json
+++ b/package.json
@@ -78,7 +78,7 @@
     "proj4": "2.4.4",
     "recast": "0.14.2",
     "serve": "^6.0.6",
-    "sinon": "4.3.0",
+    "sinon": "4.4.0",
     "url-polyfill": "^1.0.7",
     "walk": "^2.3.9",
     "webpack": "3.11.0",