diff --git a/host_vars/pottwal.n39.eu/vars.yml b/host_vars/pottwal.n39.eu/vars.yml
index 0152eaf..d7dde6b 100644
--- a/host_vars/pottwal.n39.eu/vars.yml
+++ b/host_vars/pottwal.n39.eu/vars.yml
@@ -29,7 +29,7 @@ hedgedoc_postgres_password: "{{ vault_hedgedoc_postgres_password }}"
 redmine_host_port: 8087
 redmine_domain_name: redmine.n39.eu
 redmine_image: redmine:5.1.3
-redmine_mysql_image: mysql:8.4
+redmine_mysql_image: mysql:9.0
 redmine_database: redmine
 redmine_database_password: "{{ vault_redmine_database_password }}"