diff --git a/.github/workflows/build-doxygen.yml b/.github/workflows/build-doxygen.yml
index 18e99d1..ac87801 100644
--- a/.github/workflows/build-doxygen.yml
+++ b/.github/workflows/build-doxygen.yml
@@ -13,6 +13,8 @@ jobs:
     steps:
     - name: Checkout code
       uses: actions/checkout@v2
+    - name: Install Doxygen
+      run: sudo apt-get update && sudo apt-get install -y doxygen graphviz
     - name: Generate Doxygen Documentation
       run: doxygen Doxyfile
     - name: Deploy to GitHub Pages