diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 89df6348..516bf58a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -43,8 +43,8 @@ rspec:
     - rake db:schema:load
     - rake db:migrate
     - docker login -u "${DOCKERHUB_USER}" -p "${DOCKERHUB_PASS}"
-    - docker pull openhpi/co_execenv_python
-    - docker pull openhpi/co_execenv_java
+    - docker pull openhpi/co_execenv_python:3.4
+    - docker pull openhpi/co_execenv_java:8
   script:
     - rspec --format progress
   coverage: '/\(\d+.\d+\%\) covered/'