diff --git a/examples/rsc-agent-runtime/package.json b/examples/rsc-agent-runtime/package.json
index 516d0f5d1..c0c7c5a38 100644
--- a/examples/rsc-agent-runtime/package.json
+++ b/examples/rsc-agent-runtime/package.json
@@ -17,7 +17,7 @@
   "dependencies": {
     "@agent-bundle/runtime": "workspace:*",
     "@modelcontextprotocol/client": "2.0.0",
-    "@modelcontextprotocol/core": "2.0.0",
+    "@modelcontextprotocol/core": "2.1.0",
     "@modelcontextprotocol/ext-apps": "2.0.0",
     "@modelcontextprotocol/node": "2.0.0",
     "@modelcontextprotocol/server": "2.0.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 6fcde21c8..dfcbf5ce7 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -175,11 +175,11 @@ importers:
         specifier: 2.0.0
         version: 2.0.0
       '@modelcontextprotocol/core':
-        specifier: 2.0.0
-        version: 2.0.0
+        specifier: 2.1.0
+        version: 2.1.0
       '@modelcontextprotocol/ext-apps':
         specifier: 2.0.0
-        version: 2.0.0(@modelcontextprotocol/client@2.0.0)(@modelcontextprotocol/core@2.0.0)(@modelcontextprotocol/server@2.0.0)(react-dom@19.3.0(react@19.3.0))(react@19.3.0)(zod@4.6.4)
+        version: 2.0.0(@modelcontextprotocol/client@2.0.0)(@modelcontextprotocol/core@2.1.0)(@modelcontextprotocol/server@2.0.0)(react-dom@19.3.0(react@19.3.0))(react@19.3.0)(zod@4.6.4)
       '@modelcontextprotocol/node':
         specifier: 2.0.0
         version: 2.0.0(@modelcontextprotocol/server@2.0.0)(hono@4.13.9)
@@ -873,6 +873,10 @@ packages:
     resolution: {integrity: sha512-pJCEwGG7Lfr/+PQp9ZTwKXNeO5wzbfKL7H3MYpCorM4oFBoQrdjnBgEoqG+RjhsvS1FKrDbKux+M1HhlnGWqcA==}
     engines: {node: '>=20'}
 
+  '@modelcontextprotocol/core@2.1.0':
+    resolution: {integrity: sha512-YdFj5gMRHr0gYNAhTbQDgjLHiEJdIAUYxomhKseUNye7ZGlISQmUoLh2sveFFCiQ7j2YMffT1kgSND0FSfIFjQ==}
+    engines: {node: '>=20'}
+
   '@modelcontextprotocol/ext-apps@2.0.0':
     resolution: {integrity: sha512-a6tXzFcIbIIdnqumQ7W8Oxd8W/KAPkAKYpoxpD9nDgxZ24ywgxG5pK/8G9W5pOFUygS7gWHQhPv8cwRB44/8yg==}
     engines: {node: '>=20'}
@@ -3637,10 +3641,14 @@ snapshots:
     dependencies:
       zod: 4.6.4
 
-  '@modelcontextprotocol/ext-apps@2.0.0(@modelcontextprotocol/client@2.0.0)(@modelcontextprotocol/core@2.0.0)(@modelcontextprotocol/server@2.0.0)(react-dom@19.3.0(react@19.3.0))(react@19.3.0)(zod@4.6.4)':
+  '@modelcontextprotocol/core@2.1.0':
+    dependencies:
+      zod: 4.6.4
+
+  '@modelcontextprotocol/ext-apps@2.0.0(@modelcontextprotocol/client@2.0.0)(@modelcontextprotocol/core@2.1.0)(@modelcontextprotocol/server@2.0.0)(react-dom@19.3.0(react@19.3.0))(react@19.3.0)(zod@4.6.4)':
     dependencies:
       '@modelcontextprotocol/client': 2.0.0
-      '@modelcontextprotocol/core': 2.0.0
+      '@modelcontextprotocol/core': 2.1.0
       '@standard-schema/spec': 1.1.0
       zod: 4.6.4
     optionalDependencies: