diff --git a/infra/values/keycloak-values.yaml b/infra/values/keycloak-values.yaml
index 8c2b852..1e2edde 100644
--- a/infra/values/keycloak-values.yaml
+++ b/infra/values/keycloak-values.yaml
@@ -28,6 +28,10 @@ resources:
 
 postgresql:
   enabled: true
+  image:
+    registry: docker.io
+    repository: postgres
+    tag: 17-bookworm
   auth:
     existingSecret: keycloak-credentials
     secretKeys: