diff --git a/roles/azimuth_caas_operator/defaults/main.yml b/roles/azimuth_caas_operator/defaults/main.yml
index 751497ad..8aa6b6b1 100644
--- a/roles/azimuth_caas_operator/defaults/main.yml
+++ b/roles/azimuth_caas_operator/defaults/main.yml
@@ -100,7 +100,7 @@ azimuth_caas_stackhpc_slurm_appliance_enabled: "{{ azimuth_clusters_enabled }}"
 # The git URL for the StackHPC Slurm appliance
 azimuth_caas_stackhpc_slurm_appliance_git_url: https://github.com/stackhpc/ansible-slurm-appliance.git
 # The git version for the StackHPC Slurm appliance
-azimuth_caas_stackhpc_slurm_appliance_git_version: v1.155
+azimuth_caas_stackhpc_slurm_appliance_git_version: 4de581c
 # The playbook to use for the StackHPC Slurm appliance
 azimuth_caas_stackhpc_slurm_appliance_playbook: ansible/site.yml
 # The timeout to apply to the k8s jobs which create, update & delete platform instances
diff --git a/roles/community_images/defaults/main.yml b/roles/community_images/defaults/main.yml
index fd1a7f8b..5a739278 100644
--- a/roles/community_images/defaults/main.yml
+++ b/roles/community_images/defaults/main.yml
@@ -76,12 +76,12 @@ community_images_azimuth_images: |-
 
 # Slurm images are published by the ansible-slurm-appliance repo - https://github.com/stackhpc/ansible-slurm-appliance/
 community_images_slurm_base_url: >-
-  https://object.arcus.openstack.hpc.cam.ac.uk/swift/v1/AUTH_3a06571936a0424bb40bc5c672c4ccb1/openhpc-images
+  https://object.arcus.openstack.hpc.cam.ac.uk/swift/v1/AUTH_3a06571936a0424bb40bc5c672c4ccb1/openhpc-images-prerelease
 community_images_slurm:
   # from https://github.com/stackhpc/ansible-slurm-appliance/releases/tag/v1.154
   openhpc:
-    name: openhpc-RL9-241022-0038-a5affa58
-    source_url: "{{ community_images_slurm_base_url }}/openhpc-RL9-241022-0038-a5affa58"
+    name: openhpc-RL9-241203-1659-b0558b95
+    source_url: "{{ community_images_slurm_base_url }}/openhpc-RL9-241203-1659-b0558b95"
     source_disk_format: qcow2
     container_format: bare