diff --git a/molecule/default/molecule.yml b/molecule/default/molecule.yml
index bd08db2..351718b 100644
--- a/molecule/default/molecule.yml
+++ b/molecule/default/molecule.yml
@@ -87,7 +87,6 @@
         openstack_helm_endpoints_heat_cfn_api_host: "cloudformation.{{ hostvars['ctl1']['ansible_host'].replace('.', '-') }}.nip.io"
         # Horizon
         openstack_helm_endpoints_horizon_api_host: "dashboard.{{ hostvars['ctl1']['ansible_host'].replace('.', '-') }}.nip.io"
-        openstack_helm_endpoints_horizon_mariadb_password: horizon-mariadb-password
       cephs:
         ceph_mon_fsid: 441193d8-fed9-485b-87f4-09245ddc1fe7
         ceph_mon_public_network: 10.96.240.0/24
diff --git a/releasenotes/notes/drop-horizon-mariadb-pw-69cf67dab929a12a.yaml b/releasenotes/notes/drop-horizon-mariadb-pw-69cf67dab929a12a.yaml
new file mode 100644
index 0000000..46c3479
--- /dev/null
+++ b/releasenotes/notes/drop-horizon-mariadb-pw-69cf67dab929a12a.yaml
@@ -0,0 +1,5 @@
+---
+bugfix:
+  - |
+    Drop ``horizon_mariadb_password`` hard-coded password since it's
+    automatically generated.