diff --git a/package-lock.json b/package-lock.json
index 5ed8049e84..537420cbbe 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18286,7 +18286,7 @@
         "tar": "^7.5.8",
         "tinygradient": "^1.1.5",
         "undici": "^7.10.0",
-        "ws": "^8.16.0",
+        "ws": "^8.20.1",
         "yargs": "^17.7.2",
         "zod": "^3.23.8"
       },
@@ -18392,6 +18392,27 @@
         "node": ">=14.17"
       }
     },
+    "packages/cli/node_modules/ws": {
+      "version": "8.20.1",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.20.1.tgz",
+      "integrity": "sha512-It4dO0K5v//JtTXuPkfEOaI3uUN87iYPnqo/ZzqCoG3g8uhA66QUMs/SrM0YK7/NAu+r4LMh/9dq2A7k+rHs+w==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
     "packages/core": {
       "name": "@google/gemini-cli-core",
       "version": "0.48.0-nightly.20260609.g3a13b8eeb",
@@ -18677,7 +18698,7 @@
       "version": "0.48.0-nightly.20260609.g3a13b8eeb",
       "license": "Apache-2.0",
       "dependencies": {
-        "ws": "^8.16.0"
+        "ws": "^8.20.1"
       },
       "devDependencies": {
         "react": "^19.2.0",
@@ -18687,6 +18708,27 @@
         "node": ">=20"
       }
     },
+    "packages/devtools/node_modules/ws": {
+      "version": "8.20.1",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.20.1.tgz",
+      "integrity": "sha512-It4dO0K5v//JtTXuPkfEOaI3uUN87iYPnqo/ZzqCoG3g8uhA66QUMs/SrM0YK7/NAu+r4LMh/9dq2A7k+rHs+w==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
     "packages/sdk": {
       "name": "@google/gemini-cli-sdk",
       "version": "0.48.0-nightly.20260609.g3a13b8eeb",
diff --git a/packages/cli/package.json b/packages/cli/package.json
index c782fbedd7..b5bd0d87e6 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -67,7 +67,7 @@
     "tar": "^7.5.8",
     "tinygradient": "^1.1.5",
     "undici": "^7.10.0",
-    "ws": "^8.16.0",
+    "ws": "^8.20.1",
     "yargs": "^17.7.2",
     "zod": "^3.23.8"
   },
diff --git a/packages/devtools/package.json b/packages/devtools/package.json
index b8f4729fbe..47761515d2 100644
--- a/packages/devtools/package.json
+++ b/packages/devtools/package.json
@@ -27,6 +27,6 @@
     "react-dom": "^19.2.0"
   },
   "dependencies": {
-    "ws": "^8.16.0"
+    "ws": "^8.20.1"
   }
 }