diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9c4e967c06c9bc7ecd688bcaadec17a10dd39fd9..018dce4191ecdfd09503984bc92cce6965559641 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -29,10 +29,6 @@ slc6:
   <<: *test_definition
   image: gitlab-registry.cern.ch/lhcb-docker/python-deployment:slc6
 
-slc5:
-  <<: *test_definition
-  image: gitlab-registry.cern.ch/lhcb-docker/python-deployment:slc5
-
 python2.7:
   <<: *test_definition
   image: gitlab-registry.cern.ch/lhcb-docker/python-deployment:python-2.7