diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1056ae4..ace59fa 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -24,7 +24,7 @@ check:
                     --messageToValidate "${CI_COMMIT_MESSAGE}"
 
 generate:
-        image: registry.hottis.de/dockerized/base-build-env:latest
+        image: registry.hottis.de/dockerized/base-build-env:1.5.1
         stage: generate
         tags:
                 - hottis