diff --git a/package-lock.json b/package-lock.json
index deee3fa..9f8955d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,7 +8,7 @@
       "name": "@pipe-cd/docs-mcp-server",
       "version": "0.0.6",
       "dependencies": {
-        "@modelcontextprotocol/sdk": "^1.12.3",
+        "@modelcontextprotocol/sdk": "^1.24.0",
         "@octokit/rest": "^22.0.0",
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         "dotenv": "^16.3.1",
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       "dev": true,
       "license": "MIT",
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@@ -1889,7 +1890,6 @@
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@@ -2239,7 +2238,6 @@
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@@ -2252,7 +2250,6 @@
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@@ -2345,25 +2342,40 @@
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-      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.12.3.tgz",
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+      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.24.0.tgz",
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       "license": "MIT",
       "dependencies": {
-        "ajv": "^6.12.6",
+        "ajv": "^8.17.1",
+        "ajv-formats": "^3.0.1",
         "content-type": "^1.0.5",
         "cors": "^2.8.5",
         "cross-spawn": "^7.0.5",
         "eventsource": "^3.0.2",
+        "eventsource-parser": "^3.0.0",
         "express": "^5.0.1",
         "express-rate-limit": "^7.5.0",
+        "jose": "^6.1.1",
         "pkce-challenge": "^5.0.0",
         "raw-body": "^3.0.0",
-        "zod": "^3.23.8",
-        "zod-to-json-schema": "^3.24.1"
+        "zod": "^3.25 || ^4.0",
+        "zod-to-json-schema": "^3.25.0"
       },
       "engines": {
         "node": ">=18"
+      },
+      "peerDependencies": {
+        "@cfworker/json-schema": "^4.1.1",
+        "zod": "^3.25 || ^4.0"
+      },
+      "peerDependenciesMeta": {
+        "@cfworker/json-schema": {
+          "optional": true
+        },
+        "zod": {
+          "optional": false
+        }
       }
     },
     "node_modules/@napi-rs/wasm-runtime": {
@@ -2490,6 +2502,7 @@
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       "license": "MIT",
+      "peer": true,
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         "@octokit/graphql": "^9.0.1",
@@ -2793,8 +2806,7 @@
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       "dev": true,
       "license": "MIT",
-      "optional": true,
-      "peer": true
+      "optional": true
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     "node_modules/@sinonjs/commons": {
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@@ -2969,7 +2981,6 @@
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@@ -3044,6 +3055,7 @@
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       "license": "MIT",
+      "peer": true,
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@@ -3425,21 +3437,38 @@
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+      "version": "8.17.1",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.17.1.tgz",
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-        "fast-json-stable-stringify": "^2.0.0",
-        "json-schema-traverse": "^0.4.1",
-        "uri-js": "^4.2.2"
+        "fast-deep-equal": "^3.1.3",
+        "fast-uri": "^3.0.1",
+        "json-schema-traverse": "^1.0.0",
+        "require-from-string": "^2.0.2"
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       "funding": {
         "type": "github",
         "url": "https://github.com/sponsors/epoberezkin"
       }
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+    "node_modules/ajv-formats": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/ajv-formats/-/ajv-formats-3.0.1.tgz",
+      "integrity": "sha512-8iUql50EUR+uUcdRQ3HDqa6EVyo3docL8g5WJ3FNcWmu62IbkGUue/pEyLBW8VGKKucTPgqeks4fIU1DA4yowQ==",
+      "license": "MIT",
+      "dependencies": {
+        "ajv": "^8.0.0"
+      },
+      "peerDependencies": {
+        "ajv": "^8.0.0"
+      },
+      "peerDependenciesMeta": {
+        "ajv": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/ansi-escapes": {
       "version": "4.3.2",
       "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-4.3.2.tgz",
@@ -3514,30 +3543,6 @@
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-      "resolved": "https://registry.npmjs.org/babel-jest/-/babel-jest-29.7.0.tgz",
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-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "peer": true,
-      "dependencies": {
-        "@jest/transform": "^29.7.0",
-        "@types/babel__core": "^7.1.14",
-        "babel-plugin-istanbul": "^6.1.1",
-        "babel-preset-jest": "^29.6.3",
-        "chalk": "^4.0.0",
-        "graceful-fs": "^4.2.9",
-        "slash": "^3.0.0"
-      },
-      "engines": {
-        "node": "^14.15.0 || ^16.10.0 || >=18.0.0"
-      },
-      "peerDependencies": {
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-      }
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       "resolved": "https://registry.npmjs.org/babel-plugin-istanbul/-/babel-plugin-istanbul-6.1.1.tgz",
@@ -3545,7 +3550,6 @@
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@@ -3564,7 +3568,6 @@
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@@ -3583,7 +3586,6 @@
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       "optional": true,
-      "peer": true,
       "bin": {
         "semver": "bin/semver.js"
       }
@@ -3595,7 +3597,6 @@
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@@ -3640,7 +3641,6 @@
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         "babel-preset-current-node-syntax": "^1.0.0"
@@ -3734,6 +3734,7 @@
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       ],
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "caniuse-lite": "^1.0.30001716",
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@@ -3912,7 +3913,6 @@
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@@ -4561,6 +4561,7 @@
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+      "peer": true,
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@@ -4623,8 +4624,25 @@
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+      "dev": true,
       "license": "MIT"
     },
+    "node_modules/fast-uri": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/fast-uri/-/fast-uri-3.1.0.tgz",
+      "integrity": "sha512-iPeeDKJSWf4IEOasVVrknXpaBV0IApz/gp7S2bb7Z4Lljbl2MGJRqInZiUrQwV16cpzw/D3S5j5Julj/gT52AA==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/fastify"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/fastify"
+        }
+      ],
+      "license": "BSD-3-Clause"
+    },
     "node_modules/fb-watchman": {
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       "resolved": "https://registry.npmjs.org/fb-watchman/-/fb-watchman-2.0.2.tgz",
@@ -6244,7 +6262,6 @@
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@@ -6481,7 +6498,6 @@
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-      "peer": true,
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@@ -7531,7 +7547,6 @@
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       "optional": true,
-      "peer": true,
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@@ -7727,7 +7742,6 @@
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       "optional": true,
-      "peer": true,
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         "jest-util": "^29.7.0",
@@ -7745,7 +7759,6 @@
       "dev": true,
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       "optional": true,
-      "peer": true,
       "dependencies": {
         "has-flag": "^4.0.0"
       },
@@ -7795,6 +7808,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/jose": {
+      "version": "6.1.3",
+      "resolved": "https://registry.npmjs.org/jose/-/jose-6.1.3.tgz",
+      "integrity": "sha512-0TpaTfihd4QMNwrz/ob2Bp7X04yuxJkjRGi4aKmOqwhov54i6u79oCv7T+C7lo70MKH6BesI3vscD1yb/yzKXQ==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/panva"
+      }
+    },
     "node_modules/js-tokens": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
@@ -7835,9 +7857,9 @@
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-      "version": "0.4.1",
-      "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz",
-      "integrity": "sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==",
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz",
+      "integrity": "sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug==",
       "license": "MIT"
     },
     "node_modules/json5": {
@@ -8447,15 +8469,6 @@
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-    "node_modules/punycode": {
-      "version": "2.3.1",
-      "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.3.1.tgz",
-      "integrity": "sha512-vYt7UD1U9Wg6138shLtLOvdAu+8DsC/ilFtEVHcH+wydcSpNE20AfSOduf6MkRFahL5FY7X1oU7nKVZFtfq8Fg==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=6"
-      }
-    },
     "node_modules/pure-rand": {
       "version": "7.0.1",
       "resolved": "https://registry.npmjs.org/pure-rand/-/pure-rand-7.0.1.tgz",
@@ -8529,6 +8542,15 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/require-from-string": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz",
+      "integrity": "sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/resolve-cwd": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/resolve-cwd/-/resolve-cwd-3.0.0.tgz",
@@ -9205,6 +9227,7 @@
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       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@cspotcode/source-map-support": "^0.8.0",
         "@tsconfig/node10": "^1.0.7",
@@ -9294,6 +9317,7 @@
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       "dev": true,
       "license": "Apache-2.0",
+      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -9395,15 +9419,6 @@
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-      "version": "4.4.1",
-      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
-      "integrity": "sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==",
-      "license": "BSD-2-Clause",
-      "dependencies": {
-        "punycode": "^2.1.0"
-      }
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@@ -9575,7 +9590,6 @@
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       "license": "ISC",
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-      "peer": true,
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@@ -9590,8 +9604,7 @@
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       "dev": true,
       "license": "ISC",
-      "optional": true,
-      "peer": true
+      "optional": true
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     "node_modules/y18n": {
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@@ -9712,17 +9725,18 @@
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       "license": "MIT",
+      "peer": true,
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }
     },
     "node_modules/zod-to-json-schema": {
-      "version": "3.24.5",
-      "resolved": "https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.24.5.tgz",
-      "integrity": "sha512-/AuWwMP+YqiPbsJx5D6TfgRTc4kTLjsh5SOcd4bLsfUg2RcEXrFMJl1DGgdHy2aCfsIA/cr/1JM0xcB2GZji8g==",
+      "version": "3.25.0",
+      "resolved": "https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.25.0.tgz",
+      "integrity": "sha512-HvWtU2UG41LALjajJrML6uQejQhNJx+JBO9IflpSja4R03iNWfKXrj6W2h7ljuLyc1nKS+9yDyL/9tD1U/yBnQ==",
       "license": "ISC",
       "peerDependencies": {
-        "zod": "^3.24.1"
+        "zod": "^3.25 || ^4"
       }
     }
   }
diff --git a/package.json b/package.json
index 1e2f3b1..c225aef 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "prepare-release": "npm version $VERSION --no-git-tag-version"
   },
   "dependencies": {
-    "@modelcontextprotocol/sdk": "^1.12.3",
+    "@modelcontextprotocol/sdk": "^1.24.0",
     "@octokit/rest": "^22.0.0",
     "@types/glob": "^8.1.0",
     "dotenv": "^16.3.1",