diff --git a/.github/workflows/extra.yml b/.github/workflows/extra.yml
index dece242ce..bf438c336 100644
--- a/.github/workflows/extra.yml
+++ b/.github/workflows/extra.yml
@@ -8,12 +8,14 @@ on:
       - 'environments/.stackhpc/terraform/cluster_image.auto.tfvars.json'
       - 'ansible/roles/doca/**'
       - 'ansible/roles/cuda/**'
+      - 'ansible/roles/lustre/**'
       - '.github/workflows/extra.yml'
   pull_request:
     paths:
       - 'environments/.stackhpc/terraform/cluster_image.auto.tfvars.json'
       - 'ansible/roles/doca/**'
       - 'ansible/roles/cuda/**'
+      - 'ansible/roles/lustre/**'
       - '.github/workflows/extra.yml'
 
 jobs:
@@ -29,11 +31,11 @@ jobs:
         build:
           - image_name: openhpc-extra-RL8
             source_image_name_key: RL8 # key into environments/.stackhpc/terraform/cluster_image.auto.tfvars.json
-            inventory_groups: doca,cuda
+            inventory_groups: doca,cuda,lustre
             volume_size: 30 # needed for cuda
           - image_name: openhpc-extra-RL9
             source_image_name_key: RL9
-            inventory_groups: doca,cuda
+            inventory_groups: doca,cuda,lustre
             volume_size: 30 # needed for cuda
     env:
       ANSIBLE_FORCE_COLOR: True
diff --git a/ansible/fatimage.yml b/ansible/fatimage.yml
index 9f1e9107c..9a8828a35 100644
--- a/ansible/fatimage.yml
+++ b/ansible/fatimage.yml
@@ -230,14 +230,6 @@
         name: cloudalchemy.grafana
         tasks_from: install.yml
 
-- hosts: doca
-  become: yes
-  gather_facts: yes
-  tasks:
-    - name: Install NVIDIA DOCA
-      import_role:
-        name: doca
-
 - name: Run post.yml hook
   vars:
     appliances_environment_root: "{{ lookup('env', 'APPLIANCES_ENVIRONMENT_ROOT') }}"
diff --git a/ansible/roles/lustre/README.md b/ansible/roles/lustre/README.md
index c0a25e037..3ba0dad56 100644
--- a/ansible/roles/lustre/README.md
+++ b/ansible/roles/lustre/README.md
@@ -8,7 +8,7 @@ Install and configure a Lustre client. This builds RPM packages from source.
 
 ## Role Variables
 
-- `lustre_version`: Optional str. Version of lustre to build, default `2.15.5` which is the first version with EL9 support
+- `lustre_version`: Optional str. Version of lustre to build, default `2.15.6` which is the first version with EL9.5 support
 - `lustre_lnet_label`: Optional str. The "lnet label" part of the host's NID, e.g. `tcp0`. Only the `tcp` protocol type is currently supported. Default `tcp`.
 - `lustre_mgs_nid`: Required str. The NID(s) for the MGS, e.g. `192.168.227.11@tcp1` (separate mutiple MGS NIDs using `:`).
 - `lustre_mounts`: Required list. Define Lustre filesystems and mountpoints as a list of dicts with keys:
diff --git a/ansible/roles/lustre/defaults/main.yml b/ansible/roles/lustre/defaults/main.yml
index be008ad55..40389970c 100644
--- a/ansible/roles/lustre/defaults/main.yml
+++ b/ansible/roles/lustre/defaults/main.yml
@@ -1,4 +1,4 @@
-lustre_version: '2.15.5' # https://www.lustre.org/lustre-2-15-5-released/
+lustre_version: '2.15.6' # https://www.lustre.org/lustre-2-15-6-released/
 lustre_lnet_label: tcp
 #lustre_mgs_nid:
 lustre_mounts: []
diff --git a/ansible/roles/lustre/tasks/install.yml b/ansible/roles/lustre/tasks/install.yml
index e0af857cf..852b4652f 100644
--- a/ansible/roles/lustre/tasks/install.yml
+++ b/ansible/roles/lustre/tasks/install.yml
@@ -41,30 +41,9 @@
   ansible.builtin.dnf:
     name: "{{ _lustre_find_rpms.files | map(attribute='path')}}"
     disable_gpg_check: yes
-  
-- block:
-  - name: Remove lustre build prerequisites
-    # NB Only remove ones this role installed which weren't upgrades
-    ansible.builtin.dnf:
-      name: "{{ _new_pkgs }}"
-      state: absent
-    vars:
-      _installed_pkgs: |
-        {{
-          _lustre_dnf_build_packages.results |
-          select('match', 'Installed:') |
-          map('regex_replace', '^Installed: (.+?)-[0-9].*$', '\1')
-        }}
-      _removed_pkgs: |
-        {{
-          _lustre_dnf_build_packages.results |
-          select('match', 'Removed:') |
-          map('regex_replace', '^Removed: (.+?)-[0-9].*$', '\1')
-        }}
-      _new_pkgs: "{{ _installed_pkgs | difference(_removed_pkgs) }}"
-  
-  - name: Delete lustre build dir
-    file:
-      path: "{{ lustre_build_dir }}"
-      state: absent
+
+- name: Delete lustre build dir
+  file:
+    path: "{{ lustre_build_dir }}"
+    state: absent
   when: lustre_build_cleanup | bool