diff --git a/package.json b/package.json
index 4f24d664..af4b60f9 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "body-parser": "~1.18.2",
     "chrome-remote-interface": "~0.24.2",
     "compression": "~1.7.1",
-    "express": "~4.16.2",
+    "express": "~4.21.0",
     "he": "~1.1.1",
     "valid-url": "~1.0.9"
   },