diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 0018c40..2c62b7a 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -18,9 +18,9 @@ jobs:
       matrix:
         python-version:
         - 3.8
-        - 3.9
-        - '3.10'
-        - '3.11'
+#        - 3.9
+#        - '3.10'
+#        - '3.11'
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}
diff --git a/buildrunner/docker/runner.py b/buildrunner/docker/runner.py
index 28fb972..89c4076 100644
--- a/buildrunner/docker/runner.py
+++ b/buildrunner/docker/runner.py
@@ -221,7 +221,6 @@ def start(
             "user": user,
             "working_dir": working_dir,
             "hostname": hostname,
-            "cgroupns": cgroupns,
             "host_config": self.docker_client.create_host_config(
                 binds=_binds,
                 links=links,
@@ -234,6 +233,7 @@ def start(
                 cap_add=cap_add,
                 privileged=privileged,
                 tmpfs=tmpfs,
+                cgroupns=cgroupns,
             ),
         }
         if entrypoint:
diff --git a/tests/test_buildrunner_files.py b/tests/test_buildrunner_files.py
index 1f028ce..9c09796 100644
--- a/tests/test_buildrunner_files.py
+++ b/tests/test_buildrunner_files.py
@@ -100,6 +100,8 @@ def _get_test_runs(
 ) -> List[Tuple[str, str, Optional[List[str]], int]]:
     file_names = []
     for file_name in os.listdir(test_dir):
+        if "systemd" not in file_name:
+            continue
         if serial_tests:
             if file_name in serial_test_files:
                 file_names.append(file_name)