diff --git a/.github/workflows/system.yaml b/.github/workflows/system.yaml
index a0b15b8dc..b7d91f217 100644
--- a/.github/workflows/system.yaml
+++ b/.github/workflows/system.yaml
@@ -18,16 +18,9 @@ jobs:
     - uses: actions/checkout@v2
 
     - name: Set up CPython
-      if: ${{ matrix.tox_target == 'python-igraph-apidocs' }}
       uses: actions/setup-python@v2
       with:
-        python-version: '3.8'
-    
-    - name: Set up PyPy
-      if: ${{ matrix.tox_target != 'python-igraph-apidocs' }}
-      uses: actions/setup-python@v2
-      with:
-        python-version: 'pypy-3.6'
+        python-version: '3.11'
 
     - name: Install tox
       run: |