diff --git a/roles/copr/backend/templates/copr-be.conf.j2 b/roles/copr/backend/templates/copr-be.conf.j2
index 68c13788b7..b230cfb467 100644
--- a/roles/copr/backend/templates/copr-be.conf.j2
+++ b/roles/copr/backend/templates/copr-be.conf.j2
@@ -55,7 +55,7 @@ builds_max_workers_arch=
     ppc64le={{ max_ppc64le_workers }}
 
 # Do not let one user waste the whole architecture capacity
-build_max_workers_arch_per_owner=s390x=8
+build_max_workers_arch_per_owner=s390x=12
 
 # Maximum number of concurrently running tasks per project owner.
 {% if env == 'production' %}