diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 3b44bb6..c6d6072 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -26,6 +26,6 @@ jobs:
         run:
           sudo apt-get update -y &&
           sudo apt-get install -y git python3-sphinx graphviz libenchant1c2a &&
-          sudo pip install tox
+          sudo pip install tox pycups
       - name: Test doc build
         run: tox -e docs