diff --git a/ansible/roles/prometheus/defaults/main.yml b/ansible/roles/prometheus/defaults/main.yml
index 3cd8ac0543..720a6fdd7b 100644
--- a/ansible/roles/prometheus/defaults/main.yml
+++ b/ansible/roles/prometheus/defaults/main.yml
@@ -221,7 +221,6 @@ prometheus_openstack_exporter_default_volumes:
   - "/etc/localtime:/etc/localtime:ro"
   - "{{ '/etc/timezone:/etc/timezone:ro' if ansible_os_family == 'Debian' else '' }}"
   - "kolla_logs:/var/log/kolla/"
-  - "prometheus:/var/lib/prometheus"
 prometheus_elasticsearch_exporter_default_volumes:
   - "{{ node_config_directory }}/prometheus-elasticsearch-exporter/:{{ container_config_directory }}/:ro"
   - "/etc/localtime:/etc/localtime:ro"
diff --git a/ansible/roles/prometheus/templates/prometheus-openstack-exporter.json.j2 b/ansible/roles/prometheus/templates/prometheus-openstack-exporter.json.j2
index 6a65ee802a..60d9e5fd3b 100644
--- a/ansible/roles/prometheus/templates/prometheus-openstack-exporter.json.j2
+++ b/ansible/roles/prometheus/templates/prometheus-openstack-exporter.json.j2
@@ -9,11 +9,6 @@
         }
     ],
     "permissions": [
-        {
-            "path": "/data",
-            "owner": "prometheus:kolla",
-            "recurse": true
-        },
         {
             "path": "/var/log/kolla/prometheus",
             "owner": "prometheus:kolla",
diff --git a/releasenotes/notes/remove-prometheus-volume-from-openstack-exporter-f6bb5da3093abef8.yaml b/releasenotes/notes/remove-prometheus-volume-from-openstack-exporter-f6bb5da3093abef8.yaml
new file mode 100644
index 0000000000..2976ec3530
--- /dev/null
+++ b/releasenotes/notes/remove-prometheus-volume-from-openstack-exporter-f6bb5da3093abef8.yaml
@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    No longer configures the Prometheus OpenStack exporter to use the
+    ``prometheus`` Docker volume, which was never required.