diff --git a/.docker/Dockerfile b/.docker/Dockerfile
index 9312497e64c2234e81c1e873086d9fab1aaa2848..291dc18e07009215742729a000e6fa990e0dab7f 100644
--- a/.docker/Dockerfile
+++ b/.docker/Dockerfile
@@ -1,3 +1,3 @@
-FROM mariadb:10.4
+FROM debian:stretch
 RUN apt-get update && \
 	apt-get install curl make unzip -y
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 984886b205fb7bc800ee48744dfaef9a5884bfe9..64be0b4424746ab483b29a077400718e2cf77853 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -50,11 +50,7 @@ unittests:
     - cp config.defaults .config
     - echo "MYSQL_USER_PASSWORD=caosdb1234" >> .config
     - echo "MYSQL_HOST=mariadb" >> .config
-    - . .config || echo "failed"
-    - whereis mysql
     - command -v mysql
-    - ls
-    - ./make_db bla || echo "failed"
     - ./make_db test-connection
     - ./make_db test --fresh