diff --git a/mcp/package.json b/mcp/package.json
index 2f048862..5abdac5a 100644
--- a/mcp/package.json
+++ b/mcp/package.json
@@ -35,7 +35,7 @@
   },
   "dependencies": {
     "@modelcontextprotocol/sdk": "1.29.0",
-    "ws": "8.20.0",
+    "ws": "8.21.0",
     "zod": "4.3.6"
   },
   "devDependencies": {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 9b83c2d8..059ad19f 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -100,8 +100,8 @@ importers:
         specifier: 1.29.0
         version: 1.29.0(zod@4.3.6)
       ws:
-        specifier: 8.20.0
-        version: 8.20.0
+        specifier: 8.21.0
+        version: 8.21.0
       zod:
         specifier: 4.3.6
         version: 4.3.6
@@ -2630,8 +2630,8 @@ packages:
       utf-8-validate:
         optional: true
 
-  ws@8.20.0:
-    resolution: {integrity: sha512-sAt8BhgNbzCtgGbt2OxmpuryO63ZoDk/sqaB/znQm94T4fCEsy/yV+7CdC1kJhOU9lboAEU7R3kquuycDoibVA==}
+  ws@8.21.0:
+    resolution: {integrity: sha512-Vsp28b7DRcimFQvrqu2Wek3z1iYxDCWqHYB8Qsnk/S4RfaCQzPGPyBNuVjJV3cd6UiKtUtp6sNM77gWvzcCH+g==}
     engines: {node: '>=10.0.0'}
     peerDependencies:
       bufferutil: ^4.0.1
@@ -4154,7 +4154,7 @@ snapshots:
       '@types/ws': 8.18.1
       entities: 7.0.1
       whatwg-mimetype: 3.0.0
-      ws: 8.20.0
+      ws: 8.21.0
     transitivePeerDependencies:
       - bufferutil
       - utf-8-validate
@@ -4885,7 +4885,7 @@ snapshots:
 
   ws@8.18.0: {}
 
-  ws@8.20.0: {}
+  ws@8.21.0: {}
 
   yallist@3.1.1: {}