diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 92e85372ecb86d94658731fcc39733f136afdf88..256280e6862d44bee675fd88dbf52bf3652cad38 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -54,11 +54,12 @@ code_style:
     - clang-format-11 --dry-run --verbose **/*.cpp **/*.h **/*.h.in
   allow_failure: true
 
-# cmocka tests
+# unit tests with gtest
 test:
   tags: [ docker ]
   stage: test
   script:
+    - cmake --version
     - mkdir build
     - cd build
     - cmake -DCMAKE_BUILD_TYPE=Debug ..