diff --git a/environments/.stackhpc/ARCUS.pkrvars.hcl b/environments/.stackhpc/ARCUS.pkrvars.hcl
index 78f007753..b77318a3d 100644
--- a/environments/.stackhpc/ARCUS.pkrvars.hcl
+++ b/environments/.stackhpc/ARCUS.pkrvars.hcl
@@ -4,7 +4,7 @@ volume_size = 10 # GB
 image_disk_format = "qcow2"
 networks = ["4b6b2722-ee5b-40ec-8e52-a6610e14cc51"] # portal-internal (DNS broken on ilab-60)
 source_image_name = "openhpc-230804-1754-80b8d714" # https://github.com/stackhpc/ansible-slurm-appliance/pull/298
-fatimage_source_image_name = "Rocky-8-GenericCloud-Base-8.8-20230518.0.x86_64.qcow2"
+fatimage_source_image_name = "Rocky-8-GenericCloud-Base-8.9-20231119.0.x86_64.qcow2"
 ssh_keypair_name = "slurm-app-ci"
 ssh_private_key_file = "~/.ssh/id_rsa"
 security_groups = ["default", "SSH"]
diff --git a/environments/.stackhpc/SMS.pkrvars.hcl b/environments/.stackhpc/SMS.pkrvars.hcl
index a62d79929..cd9fe589a 100644
--- a/environments/.stackhpc/SMS.pkrvars.hcl
+++ b/environments/.stackhpc/SMS.pkrvars.hcl
@@ -1,7 +1,7 @@
 flavor = "general.v1.tiny"
 networks = ["26023e3d-bc8e-459c-8def-dbd47ab01756"] # stackhpc-ipv4-geneve
 source_image_name = "openhpc-230503-0944-bf8c3f63" # https://github.com/stackhpc/ansible-slurm-appliance/pull/252
-fatimage_source_image_name = "Rocky-8-GenericCloud-Base-8.8-20230518.0.x86_64.qcow2"
+fatimage_source_image_name = "Rocky-8-GenericCloud-Base-8.9-20231119.0.x86_64.qcow2"
 ssh_keypair_name = "slurm-app-ci"
 ssh_private_key_file = "~/.ssh/id_rsa"
 security_groups = ["default", "SSH"]
diff --git a/environments/.stackhpc/terraform/main.tf b/environments/.stackhpc/terraform/main.tf
index fb217a630..1f6f5fef5 100644
--- a/environments/.stackhpc/terraform/main.tf
+++ b/environments/.stackhpc/terraform/main.tf
@@ -14,7 +14,7 @@ variable "cluster_image" {
     description = "single image for all cluster nodes - a convenience for CI"
     type = string
     default = "openhpc-231206-1648-9d6aa4e4" # https://github.com/stackhpc/ansible-slurm-appliance/pull/340
-    # default = "Rocky-8-GenericCloud-Base-8.8-20230518.0.x86_64.qcow2"
+    # default = "Rocky-8-GenericCloud-Base-8.9-20231119.0.x86_64.qcow2"
 }
 
 variable "cluster_net" {}