diff --git a/host_vars/pottwal.n39.eu/vars.yml b/host_vars/pottwal.n39.eu/vars.yml
index d2555f3..998c6c3 100644
--- a/host_vars/pottwal.n39.eu/vars.yml
+++ b/host_vars/pottwal.n39.eu/vars.yml
@@ -22,7 +22,7 @@ shlink_geolite_license_key: "{{ vault_shlink_geolite_license_key }}"
 hedgedoc_host_port: 8084
 hedgedoc_domain_name: pad.n39.eu
 hedgedoc_image: quay.io/hedgedoc/hedgedoc:1.9.3
-hedgedoc_db_image: postgres:11.6-alpine
+hedgedoc_db_image: postgres:11.21-alpine
 hedgedoc_postgres_password: "{{ vault_hedgedoc_postgres_password }}"
 
 redmine_host_port: 8087