diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
index 5f540c1309..6e12002ac8 100644
--- a/.github/workflows/claude.yml
+++ b/.github/workflows/claude.yml
@@ -32,7 +32,7 @@ jobs:
 
       - name: Run Claude Code
         id: claude
-        uses: anthropics/claude-code-action@v1
+        uses: anthropics/claude-code-action@fd1c128679612beff4ca259c78021c506e8aa7a7 # v1.0.237
         with:
           anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY_GITHUB_ACTIONS }}