diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1cf0394bcf..89ca4415e8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -573,6 +573,10 @@ stages:
     - ( if [ "${CI_DISPOSABLE_ENVIRONMENT}" = "true" ]; then sleep 3000; "$PYTHON" "${CI_PROJECT_DIR}/util/get-running-system-tests.py"; fi ) &
     - cd bin/tests/system
     - RET=0
+    # With pytest 9.0, there's the following error in pytest_ignore_collect():
+    #   The (path: py.path.local) argument is deprecated, please use (collection_path: pathlib.Path).
+    # This should be fixed before pytest 9.1, when it becomes ineffective.
+    - if pytest --version | grep -F "pytest 9.0" >/dev/null; then echo "filterwarnings = ignore::pytest.PytestRemovedIn9Warning" >> pytest.ini; fi
     - >
       ("$PYTEST" --junit-xml="$CI_PROJECT_DIR"/junit.xml -n "$TEST_PARALLEL_JOBS" | tee pytest.out.txt) || RET=1
     - *check_for_junit_xml