diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 39aa8b13..d44a5751 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -29,7 +29,7 @@ jobs:
         (cd tests && gcc ext.c -fPIC -shared -o ext.so)
     - name: Install dependencies
       run: |
-        pip install -e '.[test]'
+        pip install -e '.[test,docs]'
         pip freeze
     - name: Run tests
       run: |