diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
index 4a1b903..6c4be3d 100644
--- a/.claude-plugin/marketplace.json
+++ b/.claude-plugin/marketplace.json
@@ -58,10 +58,10 @@
       "source": {
         "source": "url",
         "url": "https://github.com/choiyounggi/dev-loop.git",
-        "ref": "v1.20.0"
+        "ref": "v1.21.0"
       },
       "homepage": "https://github.com/choiyounggi/dev-loop",
-      "version": "1.20.0",
+      "version": "1.21.0",
       "tags": [
         "orchestrator",
         "verification-loop",