diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 6f21be2..07c1b96 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: ["pypy3.9", "pypy3.10", "3.9", "3.10"]
+        python-version: ["3.10"]
     steps:
       - uses: actions/checkout@v3
 
@@ -36,7 +36,6 @@ jobs:
           pip install -r requirements.txt
       - name: Sphinx build
         run: |
-          apt install python3-distutils
           cd ${{ github.workspace }}/src/docs/source
           rm -f *.rst make.bat
           cd ${{ github.workspace }}/src