diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 375654349fd461f2dbdce71d63f51ec72a9aade0..2ab8e4bbea880aaffbb91734c2003be6d62ce03e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -25,7 +25,7 @@ ubuntu:
   except:
     variables:
       - $ENABLE_NIGHTLY_BUILDS
-  image: i10git.cs.fau.de:5005/pycodegen/pycodegen/full
+  image: i10git.cs.fau.de:5005/pycodegen/pycodegen/minimal_ubuntu
   script:
     - python3 -m pip install -e .
     - python3 setup.py test
@@ -61,7 +61,7 @@ full:
   except:
     variables:
       - $ENABLE_NIGHTLY_BUILDS
-  image: i10git.cs.fau.de:5005/pycodegen/pycodegen/minimal_conda
+  image: i10git.cs.fau.de:5005/pycodegen/pycodegen/full
   script:
     - python -m pip install -e .
     - python setup.py test