diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 15629c805841bed58399684c5abd914da5bec3ee..c33c5ee05089e777217b65ccb5f6fd3e2228bff9 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,10 +11,14 @@ before_script: &before
 dune-fufem--gcc:
   image: duneci/dune:2.6-debian-10-gcc-8-17
   script: duneci-standard-test
+  variables:
+    DUNECI_BRANCH: releases/2.6-1
 
 dune-fufem--clang:
   image: duneci/dune:2.6-debian-10-clang-7-libcpp-17
   script: duneci-standard-test
+  variables:
+    DUNECI_BRANCH: releases/2.6-1
 
 dune:git parmg gcc:
   image: duneci/dune:git-debian-10-gcc-8-17