diff --git a/example/package.json b/example/package.json
index 03a4fa9..3bce7b6 100644
--- a/example/package.json
+++ b/example/package.json
@@ -22,7 +22,7 @@
     "@hono/mcp": "0.2.3",
     "@hono/node-server": "1.19.9",
     "@stylistic/eslint-plugin": "5.7.0",
-    "@types/aws-lambda": "8.10.159",
+    "@types/aws-lambda": "8.10.160",
     "@types/node": "25.0.9",
     "@vitest/coverage-v8": "4.0.17",
     "aws-cdk": "2.1101.0",
@@ -41,7 +41,7 @@
   },
   "dependencies": {
     "@aws-lambda-powertools/logger": "2.30.2",
-    "@modelcontextprotocol/sdk": "1.25.2",
+    "@modelcontextprotocol/sdk": "1.25.3",
     "aws-cdk-lib": "2.235.1",
     "aws-lambda-mcp-server": "workspace:*",
     "constructs": "10.4.5",
diff --git a/package/package.json b/package/package.json
index 724c846..e746ab7 100644
--- a/package/package.json
+++ b/package/package.json
@@ -61,7 +61,7 @@
   "dependencies": {
     "@aws-lambda-powertools/logger": "2.30.2",
     "@hono/mcp": "0.2.3",
-    "@modelcontextprotocol/sdk": "1.25.2",
+    "@modelcontextprotocol/sdk": "1.25.3",
     "hono": "4.11.4",
     "zod": "4.3.5"
   },
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 7f18ba6..54ce6b3 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -18,8 +18,8 @@ importers:
         specifier: 2.30.2
         version: 2.30.2
       '@modelcontextprotocol/sdk':
-        specifier: 1.25.2
-        version: 1.25.2(hono@4.11.4)(zod@4.3.5)
+        specifier: 1.25.3
+        version: 1.25.3(hono@4.11.4)(zod@4.3.5)
       aws-cdk-lib:
         specifier: 2.235.1
         version: 2.235.1(constructs@10.4.5)
@@ -44,7 +44,7 @@ importers:
         version: 9.39.2
       '@hono/mcp':
         specifier: 0.2.3
-        version: 0.2.3(@modelcontextprotocol/sdk@1.25.2(hono@4.11.4)(zod@4.3.5))(hono-rate-limiter@0.4.2(hono@4.11.4))(hono@4.11.4)(zod@4.3.5)
+        version: 0.2.3(@modelcontextprotocol/sdk@1.25.3(hono@4.11.4)(zod@4.3.5))(hono-rate-limiter@0.4.2(hono@4.11.4))(hono@4.11.4)(zod@4.3.5)
       '@hono/node-server':
         specifier: 1.19.9
         version: 1.19.9(hono@4.11.4)
@@ -52,8 +52,8 @@ importers:
         specifier: 5.7.0
         version: 5.7.0(eslint@9.39.2(jiti@2.6.1))
       '@types/aws-lambda':
-        specifier: 8.10.159
-        version: 8.10.159
+        specifier: 8.10.160
+        version: 8.10.160
       '@types/node':
         specifier: 25.0.9
         version: 25.0.9
@@ -107,10 +107,10 @@ importers:
         version: 2.30.2
       '@hono/mcp':
         specifier: 0.2.3
-        version: 0.2.3(@modelcontextprotocol/sdk@1.25.2(hono@4.11.4)(zod@4.3.5))(hono-rate-limiter@0.4.2(hono@4.11.4))(hono@4.11.4)(zod@4.3.5)
+        version: 0.2.3(@modelcontextprotocol/sdk@1.25.3(hono@4.11.4)(zod@4.3.5))(hono-rate-limiter@0.4.2(hono@4.11.4))(hono@4.11.4)(zod@4.3.5)
       '@modelcontextprotocol/sdk':
-        specifier: 1.25.2
-        version: 1.25.2(hono@4.11.4)(zod@4.3.5)
+        specifier: 1.25.3
+        version: 1.25.3(hono@4.11.4)(zod@4.3.5)
       hono:
         specifier: 4.11.4
         version: 4.11.4
@@ -468,8 +468,8 @@ packages:
   '@jridgewell/trace-mapping@0.3.31':
     resolution: {integrity: sha512-zzNR+SdQSDJzc8joaeP8QQoCQr8NuYx2dIIytl1QeBEZHJ9uW6hebsrYgbz8hJwUQao3TWCMtmfV8Nu1twOLAw==}
 
-  '@modelcontextprotocol/sdk@1.25.2':
-    resolution: {integrity: sha512-LZFeo4F9M5qOhC/Uc1aQSrBHxMrvxett+9KLHt7OhcExtoiRN9DKgbZffMP/nxjutWDQpfMDfP3nkHI4X9ijww==}
+  '@modelcontextprotocol/sdk@1.25.3':
+    resolution: {integrity: sha512-vsAMBMERybvYgKbg/l4L1rhS7VXV1c0CtyJg72vwxONVX0l4ZfKVAnZEWTQixJGTzKnELjQ59e4NbdFDALRiAQ==}
     engines: {node: '>=18'}
     peerDependencies:
       '@cfworker/json-schema': ^4.1.1
@@ -621,8 +621,8 @@ packages:
   '@tybys/wasm-util@0.10.1':
     resolution: {integrity: sha512-9tTaPJLSiejZKx+Bmog4uSubteqTvFrVrURwkmHixBo0G4seD0zUxp98E1DzUBJxLQ3NPwXrGKDiVjwx/DpPsg==}
 
-  '@types/aws-lambda@8.10.159':
-    resolution: {integrity: sha512-SAP22WSGNN12OQ8PlCzGzRCZ7QDCwI85dQZbmpz7+mAk+L7j+wI7qnvmdKh+o7A5LaOp6QnOZ2NJphAZQTTHQg==}
+  '@types/aws-lambda@8.10.160':
+    resolution: {integrity: sha512-uoO4QVQNWFPJMh26pXtmtrRfGshPUSpMZGUyUQY20FhfHEElEBOPKgVmFs1z+kbpyBsRs2JnoOPT7++Z4GA9pA==}
 
   '@types/chai@5.2.3':
     resolution: {integrity: sha512-Mw558oeA9fFbv65/y4mHtXDs9bPnFMZAL/jxdPFUpOHHIXX91mcgEHbS5Lahr+pwZFR8A7GQleRWeI6cGFC2UA==}
@@ -2361,9 +2361,9 @@ snapshots:
       '@eslint/core': 0.17.0
       levn: 0.4.1
 
-  '@hono/mcp@0.2.3(@modelcontextprotocol/sdk@1.25.2(hono@4.11.4)(zod@4.3.5))(hono-rate-limiter@0.4.2(hono@4.11.4))(hono@4.11.4)(zod@4.3.5)':
+  '@hono/mcp@0.2.3(@modelcontextprotocol/sdk@1.25.3(hono@4.11.4)(zod@4.3.5))(hono-rate-limiter@0.4.2(hono@4.11.4))(hono@4.11.4)(zod@4.3.5)':
     dependencies:
-      '@modelcontextprotocol/sdk': 1.25.2(hono@4.11.4)(zod@4.3.5)
+      '@modelcontextprotocol/sdk': 1.25.3(hono@4.11.4)(zod@4.3.5)
       hono: 4.11.4
       hono-rate-limiter: 0.4.2(hono@4.11.4)
       pkce-challenge: 5.0.1
@@ -2393,7 +2393,7 @@ snapshots:
       '@jridgewell/resolve-uri': 3.1.2
       '@jridgewell/sourcemap-codec': 1.5.5
 
-  '@modelcontextprotocol/sdk@1.25.2(hono@4.11.4)(zod@4.3.5)':
+  '@modelcontextprotocol/sdk@1.25.3(hono@4.11.4)(zod@4.3.5)':
     dependencies:
       '@hono/node-server': 1.19.9(hono@4.11.4)
       ajv: 8.17.1
@@ -2516,7 +2516,7 @@ snapshots:
       tslib: 2.8.1
     optional: true
 
-  '@types/aws-lambda@8.10.159': {}
+  '@types/aws-lambda@8.10.160': {}
 
   '@types/chai@5.2.3':
     dependencies: