diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index fe7ed526b..d3a5d166a 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -17,6 +17,9 @@ jobs:
       uses: mattnotmitt/doxygen-action@v1.9.5
       with:
         doxyfile-path: 'Doxyfile'
+
+    - name: Install dependencies
+    run: sudo apt-get update && sudo apt-get install -y graphviz
     
     - name: Deploy to GitHub Pages
       uses: peaceiris/actions-gh-pages@v3