diff --git a/package-lock.json b/package-lock.json
index 33eee16..cd04448 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
         "codex-jev": "scripts/investigate.mjs"
       },
       "devDependencies": {
-        "@modelcontextprotocol/sdk": "1.30.0",
+        "@modelcontextprotocol/sdk": "1.31.0",
         "esbuild": "0.28.2",
         "eslint": "10.11.0",
         "zod": "4.6.5"
@@ -698,9 +698,9 @@
       "license": "MIT"
     },
     "node_modules/@modelcontextprotocol/sdk": {
-      "version": "1.30.0",
-      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.30.0.tgz",
-      "integrity": "sha512-xKd8OIzlqNzcqcNumGAa6g+PW2kjD5vrpcKOnfldAUPP3j7lnqMPwlTXQm8gF+UwH72z0lqaRbjr9hqGz0eITA==",
+      "version": "1.31.0",
+      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.31.0.tgz",
+      "integrity": "sha512-UvTMgnNlnIBO/22ob2RcVGDlcvOslQs8T59+FTGdA0L27a39fdGF/EDETNtDVK4DZGpwomlsYpRdA8UXcVL/pw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index 2466881..d3780bc 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "status": "node scripts/retrieval-trial.mjs report"
   },
   "devDependencies": {
-    "@modelcontextprotocol/sdk": "1.30.0",
+    "@modelcontextprotocol/sdk": "1.31.0",
     "esbuild": "0.28.2",
     "eslint": "10.11.0",
     "zod": "4.6.5"