diff --git a/package-lock.json b/package-lock.json
index b83debe74..ab9e42f44 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,12 +9,12 @@
       "version": "0.8.0",
       "license": "Apache-2.0",
       "dependencies": {
-        "@modelcontextprotocol/sdk": "1.19.1",
-        "core-js": "3.45.1",
+        "@modelcontextprotocol/sdk": "1.20.0",
+        "core-js": "3.46.0",
         "debug": "4.4.3",
         "puppeteer-core": "^24.24.0",
         "yargs": "18.0.0",
-        "zod": "^3.25.76"
+        "zod": "^4.1.12"
       },
       "bin": {
         "chrome-devtools-mcp": "build/src/index.js"
@@ -372,9 +372,9 @@
       }
     },
     "node_modules/@modelcontextprotocol/sdk": {
-      "version": "1.19.1",
-      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.19.1.tgz",
-      "integrity": "sha512-3Y2h3MZKjec1eAqSTBclATlX+AbC6n1LgfVzRMJLt3v6w0RCYgwLrjbxPDbhsYHt6Wdqc/aCceNJYgj448ELQQ==",
+      "version": "1.20.0",
+      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.20.0.tgz",
+      "integrity": "sha512-kOQ4+fHuT4KbR2iq2IjeV32HiihueuOf1vJkq18z08CLZ1UQrTc8BXJpVfxZkq45+inLLD+D4xx4nBjUelJa4Q==",
       "license": "MIT",
       "dependencies": {
         "ajv": "^6.12.6",
@@ -394,6 +394,24 @@
         "node": ">=18"
       }
     },
+    "node_modules/@modelcontextprotocol/sdk/node_modules/zod": {
+      "version": "3.25.76",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
+      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
+    "node_modules/@modelcontextprotocol/sdk/node_modules/zod-to-json-schema": {
+      "version": "3.24.6",
+      "resolved": "https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.24.6.tgz",
+      "integrity": "sha512-h/z3PKvcTcTetyjl1fkj79MHNEjm+HpD6NXheWjzOekY7kV+lwDYnHw+ivHkijnCSMz1yJaWBD9vu/Fcmk+vEg==",
+      "license": "ISC",
+      "peerDependencies": {
+        "zod": "^3.24.1"
+      }
+    },
     "node_modules/@napi-rs/wasm-runtime": {
       "version": "0.2.12",
       "resolved": "https://registry.npmjs.org/@napi-rs/wasm-runtime/-/wasm-runtime-0.2.12.tgz",
@@ -1778,6 +1796,15 @@
         "devtools-protocol": "*"
       }
     },
+    "node_modules/chromium-bidi/node_modules/zod": {
+      "version": "3.25.76",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
+      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "node_modules/cliui": {
       "version": "9.0.1",
       "resolved": "https://registry.npmjs.org/cliui/-/cliui-9.0.1.tgz",
@@ -1907,9 +1934,9 @@
       }
     },
     "node_modules/core-js": {
-      "version": "3.45.1",
-      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.45.1.tgz",
-      "integrity": "sha512-L4NPsJlCfZsPeXukyzHFlg/i7IIVwHSItR0wg0FLNqYClJ4MQYTYLbC7EkjKYRLZF2iof2MUgN0EGy7MdQFChg==",
+      "version": "3.46.0",
+      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.46.0.tgz",
+      "integrity": "sha512-vDMm9B0xnqqZ8uSBpZ8sNtRtOdmfShrvT6h2TuQGLs0Is+cR0DYbj/KWP6ALVNbWPpqA/qPLoOuppJN07humpA==",
       "hasInstallScript": true,
       "license": "MIT",
       "funding": {
@@ -6203,20 +6230,13 @@
       }
     },
     "node_modules/zod": {
-      "version": "3.25.76",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
-      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "version": "4.1.12",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.12.tgz",
+      "integrity": "sha512-JInaHOamG8pt5+Ey8kGmdcAcg3OL9reK8ltczgHTAwNhMys/6ThXHityHxVV2p3fkw/c+MAvBHFVYHFZDmjMCQ==",
+      "license": "MIT",
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }
-    },
-    "node_modules/zod-to-json-schema": {
-      "version": "3.24.6",
-      "resolved": "https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.24.6.tgz",
-      "integrity": "sha512-h/z3PKvcTcTetyjl1fkj79MHNEjm+HpD6NXheWjzOekY7kV+lwDYnHw+ivHkijnCSMz1yJaWBD9vu/Fcmk+vEg==",
-      "peerDependencies": {
-        "zod": "^3.24.1"
-      }
     }
   }
 }
diff --git a/package.json b/package.json
index 06137f000..c4c71c78b 100644
--- a/package.json
+++ b/package.json
@@ -37,12 +37,12 @@
   "homepage": "https://github.com/ChromeDevTools/chrome-devtools-mcp#readme",
   "mcpName": "io.github.ChromeDevTools/chrome-devtools-mcp",
   "dependencies": {
-    "@modelcontextprotocol/sdk": "1.19.1",
-    "core-js": "3.45.1",
+    "@modelcontextprotocol/sdk": "1.20.0",
+    "core-js": "3.46.0",
     "debug": "4.4.3",
     "puppeteer-core": "^24.24.0",
     "yargs": "18.0.0",
-    "zod": "^3.25.76"
+    "zod": "^4.1.12"
   },
   "devDependencies": {
     "@eslint/js": "^9.35.0",