diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4f5eeee9..2de1aab9 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -49,7 +49,7 @@ fedora:cached:
 ubuntu:cached:
   extends: .test
   variables:
-    DETECTED_OS: ubuntu:cosmic
+    DETECTED_OS: ubuntu:disco
     OS_NAME: ubuntu
   dependencies:
     - image:ubuntu
@@ -64,6 +64,6 @@ fedora:fresh:
 ubuntu:fresh:
   extends: .test
   variables:
-    DETECTED_OS: ubuntu:cosmic
+    DETECTED_OS: ubuntu:disco
     OS_NAME: ubuntu
-    DOCKER_IMAGE: ubuntu:cosmic
+    DOCKER_IMAGE: ubuntu:disco