diff --git a/package.json b/package.json
index f4900c77e..2b24cc348 100644
--- a/package.json
+++ b/package.json
@@ -260,7 +260,7 @@
     "react-testutils-additions": "^15.2.0",
     "selenium-webdriver": "^3.5.0",
     "redux-test-utils": "^0.2.2",
-    "sinon": "^4.0.0",
+    "sinon": "^5.0.0",
     "stylelint-config-standard": "^18.2.0",
     "tape": "^4.5.1",
     "testem": "^2.0.0",