diff --git a/.github/workflows/sphinx.yml b/.github/workflows/sphinx.yml
index 4974816c..13d82c59 100644
--- a/.github/workflows/sphinx.yml
+++ b/.github/workflows/sphinx.yml
@@ -37,6 +37,10 @@ jobs:
           python -m pip install --upgrade pip
           pip install -r docs/requirements.txt
 
+      - name: Install ImageMagick
+        run: |
+          sudo apt install imagemagick
+
       - name: Run Sphinx
         run: |
           cd docs