diff --git a/package-lock.json b/package-lock.json
index 972f748..c8acd94 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "@anthropic-ai/sdk": "^0.126.0",
         "@hono/node-server": "^1.14.0",
-        "@modelcontextprotocol/sdk": "^1.30.0",
+        "@modelcontextprotocol/sdk": "^1.31.0",
         "chrono-node": "^2.8.0",
         "dom-serializer": "^3.1.1",
         "domhandler": "^6.0.1",
@@ -1081,9 +1081,9 @@
       }
     },
     "node_modules/@modelcontextprotocol/sdk": {
-      "version": "1.30.1",
-      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.30.1.tgz",
-      "integrity": "sha512-H2HxLvC3HDNybePJaLdSrU1hhUK5iQw+WvV1b01myFyI7sdVGe1u/IPTE5D9fGCiJDVtgMV/lmFkQXLmQyIFYA==",
+      "version": "1.31.0",
+      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.31.0.tgz",
+      "integrity": "sha512-UvTMgnNlnIBO/22ob2RcVGDlcvOslQs8T59+FTGdA0L27a39fdGF/EDETNtDVK4DZGpwomlsYpRdA8UXcVL/pw==",
       "license": "MIT",
       "dependencies": {
         "@hono/node-server": "^1.19.9 || ^2.0.5",
diff --git a/package.json b/package.json
index 1e7f7ac..029750b 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
   "dependencies": {
     "@anthropic-ai/sdk": "^0.126.0",
     "@hono/node-server": "^1.14.0",
-    "@modelcontextprotocol/sdk": "^1.30.0",
+    "@modelcontextprotocol/sdk": "^1.31.0",
     "chrono-node": "^2.8.0",
     "dom-serializer": "^3.1.1",
     "domhandler": "^6.0.1",