diff --git a/packages/ws/package.json b/packages/ws/package.json
index 1c4dd7c57dfe..0acd9e8efa6e 100644
--- a/packages/ws/package.json
+++ b/packages/ws/package.json
@@ -100,7 +100,7 @@
 		"tsup": "^8.1.0",
 		"turbo": "^1.13.3",
 		"typescript": "^5.4.5",
-		"undici": "6.21.1",
+		"undici": "6.21.3",
 		"vitest": "^1.6.0",
 		"zlib-sync": "^0.1.10"
 	},
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 59c6242e00cf..055188dad293 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1759,8 +1759,8 @@ importers:
         specifier: ^5.4.5
         version: 5.4.5
       undici:
-        specifier: 6.21.1
-        version: 6.21.1
+        specifier: 6.21.3
+        version: 6.21.3
       vitest:
         specifier: ^1.6.0
         version: 1.6.0(@edge-runtime/vm@3.2.0)(@types/node@18.17.9)(happy-dom@14.12.0)(terser@5.31.0)
@@ -13308,6 +13308,10 @@ packages:
     resolution: {integrity: sha512-q/1rj5D0/zayJB2FraXdaWxbhWiNKDvu8naDT2dl1yTlvJp4BLtOcp2a5BvgGNQpYYJzau7tf1WgKv3b+7mqpQ==}
     engines: {node: '>=18.17'}
 
+  undici@6.21.3:
+    resolution: {integrity: sha512-gBLkYIlEnSp8pFbT64yFgGE6UIB9tAkhukC23PmMDCe5Nd+cRqKxSjw5y54MK2AZMgZfJWMaNE4nYUHgi1XEOw==}
+    engines: {node: '>=18.17'}
+
   unicode-canonical-property-names-ecmascript@2.0.0:
     resolution: {integrity: sha512-yY5PpDlfVIU5+y/BSCxAJRBIS1Zc2dDG3Ujq+sR0U+JjUevW2JhocOF+soROYDSaAezOzOKuyyixhD6mBknSmQ==}
     engines: {node: '>=4'}
@@ -29791,6 +29795,8 @@ snapshots:
 
   undici@6.21.1: {}
 
+  undici@6.21.3: {}
+
   unicode-canonical-property-names-ecmascript@2.0.0: {}
 
   unicode-match-property-ecmascript@2.0.0: