diff --git a/node_modules/sinon/package.json b/node_modules/sinon/package.json
index 876a96dd..3cb84b76 100644
--- a/node_modules/sinon/package.json
+++ b/node_modules/sinon/package.json
@@ -59,7 +59,7 @@
     "@sinonjs/commons": "^1.4.0",
     "@sinonjs/formatio": "^3.2.1",
     "@sinonjs/samsam": "^3.3.3",
-    "diff": "^3.5.0",
+    "diff": "^4.0.4",
     "lolex": "^4.2.0",
     "nise": "^1.5.2",
     "supports-color": "^5.5.0"