diff --git a/.github/workflows/lint_test.yml b/.github/workflows/lint_test.yml
index b14bb66f41..f995770de0 100644
--- a/.github/workflows/lint_test.yml
+++ b/.github/workflows/lint_test.yml
@@ -70,7 +70,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install -r requirements.txt -r requirements-tests.txt
+        python -m pip install -r requirements.txt -r requirements-tests.txt -r requirements-docs.txt
         python -m pip freeze --all
 
     - name: Install FontBakery
@@ -86,3 +86,7 @@ jobs:
       run: |
         python -m pytest --quiet --cov
 
+    - name: Ensure documentation can build (only Ubuntu/Python 3.10)
+      if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.10'
+      run: |
+        cd docs; make html