diff --git a/Composer/packages/tools/language-servers/language-understanding/package.json b/Composer/packages/tools/language-servers/language-understanding/package.json
index b3b93e2580..76772f5fd4 100644
--- a/Composer/packages/tools/language-servers/language-understanding/package.json
+++ b/Composer/packages/tools/language-servers/language-understanding/package.json
@@ -22,7 +22,7 @@
     "@bfc/shared": "*",
     "@microsoft/bf-cli-command": "4.14.0-dev.20210604.3f9ee15",
     "@microsoft/bf-lu": "4.15.0-dev.20210702.cbf708d",
-    "express": "4.17.3",
+    "express": "4.19.2",
     "monaco-languageclient": "0.10.2",
     "normalize-url": "^4.5.1",
     "reconnecting-websocket": "^3.2.2",