diff --git a/templates/gitlab-ci-python.yml b/templates/gitlab-ci-python.yml
index f1821e904659177969f3d3a3d2ff87fd0dcb59e3..193bd92d2f34bf9da011b69d86b8c8acdc2db7e0 100644
--- a/templates/gitlab-ci-python.yml
+++ b/templates/gitlab-ci-python.yml
@@ -487,7 +487,7 @@ variables:
         # current version shall be set in .bumpversion.cfg
         py_release_part="$PYTHON_RELEASE_NEXT"
         log_info "[bumpversion] increase \\e[1;94m${py_release_part}\\e[0m"
-        bumpversion ${TRACE+--verbose} --commit ${PYTHON_RELEASE_COMMIT_MESSAGE+--message "$PYTHON_RELEASE_COMMIT_MESSAGE"} "$PYTHON_RELEASE_COMMIT_MESSAGE" --tag --tag-name "{new_version}" "$py_release_part"
+        bumpversion ${TRACE+--verbose} --commit ${PYTHON_RELEASE_COMMIT_MESSAGE+--message "$PYTHON_RELEASE_COMMIT_MESSAGE"} --tag --tag-name "{new_version}" "$py_release_part"
       elif [[ -f "setup.py" ]]
       then
         # retrieve current version from setup.py