diff --git a/package.json b/package.json
index 9f5ed97e..20801171 100644
--- a/package.json
+++ b/package.json
@@ -128,7 +128,7 @@
     "url-search-params-polyfill": "2.0.3",
     "webpack": "3.11.0",
     "webpack-dev-middleware": "2.0.6",
-    "webpack-hot-middleware": "2.21.0",
+    "webpack-hot-middleware": "2.21.2",
     "webpack-sources": "1.0.1",
     "webpack-subresource-integrity": "1.0.4",
     "worker-loader": "1.1.1",