diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 78e5afb46..60e0a79ce 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -395,7 +395,10 @@ OSTree simplified installer:
           - rhos-01/rhel-8.7-nightly-x86_64
           - rhos-01/centos-stream-8-x86_64
           - rhos-01/rhel-9.1-nightly-x86_64
-          - rhos-01/centos-stream-9-x86_64
+          # this is disabled because of two BZs in cs9
+          # rhbz#2124735 and rhbz#2108646 preventing 
+          # the system to install and boot properly
+          # - rhos-01/centos-stream-9-x86_64
 
 OSTree raw image:
   stage: test