diff --git a/.github/workflows/claude-dedupe-issues.yml b/.github/workflows/claude-dedupe-issues.yml
index f7f2f988..4e6d4fca 100644
--- a/.github/workflows/claude-dedupe-issues.yml
+++ b/.github/workflows/claude-dedupe-issues.yml
@@ -17,9 +17,9 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Run Claude Code slash command
-        uses: anthropics/claude-code-base-action@beta
+        uses: anthropics/claude-code-action@beta
         with:
-          prompt: "/dedupe ${{ github.repository }}/issues/${{ github.event.issue.number }}"
+          prompt_override: "/dedupe ${{ github.repository }}/issues/${{ github.event.issue.number }}"
           anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
           claude_env: |
             GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}