diff --git a/apps/desktop/package-lock.json b/apps/desktop/package-lock.json
index d3e12d64..e1954bf0 100644
--- a/apps/desktop/package-lock.json
+++ b/apps/desktop/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.0.0-beta.1",
       "license": "AGPL-3.0",
       "dependencies": {
-        "@agentclientprotocol/sdk": "^0.20.0",
+        "@agentclientprotocol/sdk": "^0.21.0",
         "@anthropic-ai/claude-agent-sdk": "^0.2.139",
         "@cursor/sdk": "^1.0.9",
         "@floating-ui/react": "^0.27.19",
@@ -109,9 +109,9 @@
       }
     },
     "node_modules/@agentclientprotocol/sdk": {
-      "version": "0.20.0",
-      "resolved": "https://registry.npmjs.org/@agentclientprotocol/sdk/-/sdk-0.20.0.tgz",
-      "integrity": "sha512-BxEHyE4MvwyOsdyVPub1vEtyrq8E0JSdjC+ckXWimY1VabFCTXdPyXv2y2Omz1j+iod7Z8oBJDXFCJptM0GBqQ==",
+      "version": "0.21.0",
+      "resolved": "https://registry.npmjs.org/@agentclientprotocol/sdk/-/sdk-0.21.0.tgz",
+      "integrity": "sha512-ONj+Q8qOdNQp5XbH5jnMwzT9IKZJsSN0p0lkceS4GtUtNOPVLpNzSS8gqQdGMKfBvA0ESbkL8BTaSN1Rc9miEw==",
       "license": "Apache-2.0",
       "peerDependencies": {
         "zod": "^3.25.0 || ^4.0.0"
diff --git a/apps/desktop/package.json b/apps/desktop/package.json
index ca8ed897..58ba96e1 100644
--- a/apps/desktop/package.json
+++ b/apps/desktop/package.json
@@ -49,7 +49,7 @@
     "version:release": "node ./scripts/set-release-version.mjs"
   },
   "dependencies": {
-    "@agentclientprotocol/sdk": "^0.20.0",
+    "@agentclientprotocol/sdk": "^0.21.0",
     "@anthropic-ai/claude-agent-sdk": "^0.2.139",
     "@cursor/sdk": "^1.0.9",
     "@floating-ui/react": "^0.27.19",