diff --git a/.github/workflows/mdbook-action.yml b/.github/workflows/mdbook-action.yml
index 0916f8c..25f6298 100644
--- a/.github/workflows/mdbook-action.yml
+++ b/.github/workflows/mdbook-action.yml
@@ -24,7 +24,7 @@ jobs:
 
       - name: Deploy
         uses: peaceiris/actions-gh-pages@v3
-        if: ${{ github.ref == 'refs/heads/main' }}
+        if: ${{ github.ref == 'refs/heads/documentation' }}
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./book
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