diff --git a/package.json b/package.json
index 6044186..f6a2e6f 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "babel": "6.23.0",
     "bootstrap": "5.3.3",
     "eventemitter3": "5.0.1",
-    "express": "4.21.0",
+    "express": "4.21.1",
     "flux": "4.0.4",
     "front-matter": "4.0.2",
     "pug": "3.0.3",