diff --git a/.github/workflows/claude-bot.yml b/.github/workflows/claude-bot.yml
index 94ba377..fe2b88d 100644
--- a/.github/workflows/claude-bot.yml
+++ b/.github/workflows/claude-bot.yml
@@ -63,7 +63,7 @@ jobs:
                   fetch-depth: 1
 
             - name: Run Claude Code Action
-              uses: anthropics/claude-code-action@v1
+              uses: anthropics/claude-code-action@1eddb334cfa79fdb21ecbe2180ca1a016e8e7d47 # v1.0.88
               timeout-minutes: 60
               with:
                   anthropic_api_key: ${{ secrets.ENG_ANTHROPIC_API_KEY }}