diff --git a/package.json b/package.json
index 37f3652..da0ffc1 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "dependencies": {
     "blockhash": "^0.2.0",
     "child-manager": "^0.1.2",
-    "express": "^4.16.4",
+    "express": "^4.21.0",
     "image-size": "^0.4.0",
     "image-type": "^4.1.0",
     "jpeg-js": "^0.4.0",