diff --git a/class/defaults.yml b/class/defaults.yml
index 16a1ff0e..dfd162bb 100644
--- a/class/defaults.yml
+++ b/class/defaults.yml
@@ -62,7 +62,7 @@ parameters:
         version: 2.5.1
       postgresql:
         source: https://charts.bitnami.com/bitnami
-        version: 12.12.10
+        version: 16.2.3
     # FQDN should be overwritten on the cluster level
     fqdn: keycloak.example.com
     # Default path since Quarkus is "/" rather than "/auth"