diff --git a/package-lock.json b/package-lock.json
index 308039d..1e1d82d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,16 +8,16 @@
       "name": "@pipe-cd/docs-mcp-server",
       "version": "0.0.4",
       "dependencies": {
-        "@modelcontextprotocol/sdk": "^1.12.0",
+        "@modelcontextprotocol/sdk": "^1.12.1",
         "@octokit/rest": "^22.0.0",
         "@types/glob": "^8.1.0",
         "dotenv": "^16.3.1",
         "express": "^5.1.0",
         "glob": "^11.0.2",
         "js-yaml": "^4.1.0",
-        "octokit": "^5.0.2",
+        "octokit": "^5.0.3",
         "simple-git": "^3.27.0",
-        "zod": "^3.25.28"
+        "zod": "^3.25.48"
       },
       "bin": {
         "docs-mcp-server": "dist/main.js"
@@ -27,7 +27,7 @@
         "@types/express": "^5.0.2",
         "@types/jest": "^29.5.14",
         "@types/js-yaml": "^4.0.9",
-        "@types/node": "^22.15.21",
+        "@types/node": "^22.15.29",
         "jest": "^29.7.0",
         "ts-jest": "^29.3.4",
         "ts-node": "^10.9.1",
@@ -1328,9 +1328,9 @@
       "license": "MIT"
     },
     "node_modules/@modelcontextprotocol/sdk": {
-      "version": "1.12.0",
-      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.12.0.tgz",
-      "integrity": "sha512-m//7RlINx1F3sz3KqwY1WWzVgTcYX52HYk4bJ1hkBXV3zccAEth+jRvG8DBRrdaQuRsPAJOx2MH3zaHNCKL7Zg==",
+      "version": "1.12.1",
+      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.12.1.tgz",
+      "integrity": "sha512-KG1CZhZfWg+u8pxeM/mByJDScJSrjjxLc8fwQqbsS8xCjBmQfMNEBTotYdNanKekepnfRI85GtgQlctLFpcYPw==",
       "license": "MIT",
       "dependencies": {
         "ajv": "^6.12.6",
@@ -1595,12 +1595,12 @@
       }
     },
     "node_modules/@octokit/plugin-rest-endpoint-methods": {
-      "version": "15.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/plugin-rest-endpoint-methods/-/plugin-rest-endpoint-methods-15.0.0.tgz",
-      "integrity": "sha512-db6UdWvpX7O6tNsdkPk1BttVwTeVdA4n8RDFeXOyjBCPjE2YPufIAlzWh8CyeH8hl/3dSuQXDa+qLmsBlkTY+Q==",
+      "version": "16.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/plugin-rest-endpoint-methods/-/plugin-rest-endpoint-methods-16.0.0.tgz",
+      "integrity": "sha512-kJVUQk6/dx/gRNLWUnAWKFs1kVPn5O5CYZyssyEoNYaFedqZxsfYs7DwI3d67hGz4qOwaJ1dpm07hOAD1BXx6g==",
       "license": "MIT",
       "dependencies": {
-        "@octokit/types": "^14.0.0"
+        "@octokit/types": "^14.1.0"
       },
       "engines": {
         "node": ">= 20"
@@ -1701,21 +1701,6 @@
         "node": ">= 20"
       }
     },
-    "node_modules/@octokit/rest/node_modules/@octokit/plugin-rest-endpoint-methods": {
-      "version": "16.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/plugin-rest-endpoint-methods/-/plugin-rest-endpoint-methods-16.0.0.tgz",
-      "integrity": "sha512-kJVUQk6/dx/gRNLWUnAWKFs1kVPn5O5CYZyssyEoNYaFedqZxsfYs7DwI3d67hGz4qOwaJ1dpm07hOAD1BXx6g==",
-      "license": "MIT",
-      "dependencies": {
-        "@octokit/types": "^14.1.0"
-      },
-      "engines": {
-        "node": ">= 20"
-      },
-      "peerDependencies": {
-        "@octokit/core": ">=6"
-      }
-    },
     "node_modules/@octokit/types": {
       "version": "14.1.0",
       "resolved": "https://registry.npmjs.org/@octokit/types/-/types-14.1.0.tgz",
@@ -1986,9 +1971,9 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "22.15.21",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.15.21.tgz",
-      "integrity": "sha512-EV/37Td6c+MgKAbkcLG6vqZ2zEYHD7bvSrzqqs2RIhbA6w3x+Dqz8MZM3sP6kGTeLrdoOgKZe+Xja7tUB2DNkQ==",
+      "version": "22.15.29",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.15.29.tgz",
+      "integrity": "sha512-LNdjOkUDlU1RZb8e1kOIUpN1qQUlzGkEtbVNo53vbrwDg5om6oduhm4SiUaPW5ASTXhAiP0jInWG8Qx9fVlOeQ==",
       "license": "MIT",
       "dependencies": {
         "undici-types": "~6.21.0"
@@ -4839,9 +4824,9 @@
       }
     },
     "node_modules/octokit": {
-      "version": "5.0.2",
-      "resolved": "https://registry.npmjs.org/octokit/-/octokit-5.0.2.tgz",
-      "integrity": "sha512-WCO9Oip2F+qsrIcNMfLwm1+dL2g70oO++pkmiluisJDMXXwdO4susVaVg1iQZgZNiDtA1qcLXs5662Mdj/vqdw==",
+      "version": "5.0.3",
+      "resolved": "https://registry.npmjs.org/octokit/-/octokit-5.0.3.tgz",
+      "integrity": "sha512-+bwYsAIRmYv30NTmBysPIlgH23ekVDriB07oRxlPIAH5PI0yTMSxg5i5Xy0OetcnZw+nk/caD4szD7a9YZ3QyQ==",
       "license": "MIT",
       "dependencies": {
         "@octokit/app": "^16.0.1",
@@ -4849,7 +4834,7 @@
         "@octokit/oauth-app": "^8.0.1",
         "@octokit/plugin-paginate-graphql": "^6.0.0",
         "@octokit/plugin-paginate-rest": "^13.0.0",
-        "@octokit/plugin-rest-endpoint-methods": "^15.0.0",
+        "@octokit/plugin-rest-endpoint-methods": "^16.0.0",
         "@octokit/plugin-retry": "^8.0.1",
         "@octokit/plugin-throttling": "^11.0.1",
         "@octokit/request-error": "^7.0.0",
@@ -6400,9 +6385,9 @@
       }
     },
     "node_modules/zod": {
-      "version": "3.25.28",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.28.tgz",
-      "integrity": "sha512-/nt/67WYKnr5by3YS7LroZJbtcCBurDKKPBPWWzaxvVCGuG/NOsiKkrjoOhI8mJ+SQUXEbUzeB3S+6XDUEEj7Q==",
+      "version": "3.25.48",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.48.tgz",
+      "integrity": "sha512-0X1mz8FtgEIvaxGjdIImYpZEaZMrund9pGXm3M6vM7Reba0e2eI71KPjSCGXBfwKDPwPoywf6waUKc3/tFvX2Q==",
       "license": "MIT",
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
diff --git a/package.json b/package.json
index e71daf1..b44dff3 100644
--- a/package.json
+++ b/package.json
@@ -17,23 +17,23 @@
     "prepare-release": "npm version $VERSION --no-git-tag-version"
   },
   "dependencies": {
-    "@modelcontextprotocol/sdk": "^1.12.0",
+    "@modelcontextprotocol/sdk": "^1.12.1",
     "@octokit/rest": "^22.0.0",
     "@types/glob": "^8.1.0",
     "dotenv": "^16.3.1",
     "express": "^5.1.0",
     "glob": "^11.0.2",
     "js-yaml": "^4.1.0",
-    "octokit": "^5.0.2",
+    "octokit": "^5.0.3",
     "simple-git": "^3.27.0",
-    "zod": "^3.25.28"
+    "zod": "^3.25.48"
   },
   "devDependencies": {
     "@biomejs/biome": "1.9.4",
     "@types/express": "^5.0.2",
     "@types/jest": "^29.5.14",
     "@types/js-yaml": "^4.0.9",
-    "@types/node": "^22.15.21",
+    "@types/node": "^22.15.29",
     "jest": "^29.7.0",
     "ts-jest": "^29.3.4",
     "ts-node": "^10.9.1",