diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index 62df7fc..2cb8d14 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -142,6 +142,9 @@ jobs:
           sudo rm -rf /usr/local/share/chromium
           sudo rm -rf /usr/local/lib/node_modules
           sudo rm -rf /opt/ghc
+      - name: Allow unprivileged user namespaces
+        run: |
+          sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0
 
       - name: Setup Python & Poetry Environment
         uses: exasol/python-toolbox/.github/actions/python-environment@0.18.0