diff --git a/inventory/group_vars/copr_aws b/inventory/group_vars/copr_aws
index fe9dd9718a..6a6c484183 100644
--- a/inventory/group_vars/copr_aws
+++ b/inventory/group_vars/copr_aws
@@ -39,7 +39,7 @@ builders:
   x86_hypervisor_04:
     x86_64: [20, 4, 20]
   ibm_cloud_tokyo:
-    s390x: [12, 4, 4]
+    s390x: [18, 6, 6]
 copr_aws_region: us-east-1
 # don't forget to update ip in ./copr-keygen, due to custom firewall rules