diff --git a/class/defaults.yml b/class/defaults.yml
index e7aa35d3..5d306e4a 100644
--- a/class/defaults.yml
+++ b/class/defaults.yml
@@ -51,7 +51,7 @@ parameters:
       postgresql:
         registry: docker.io
         repository: bitnami/postgresql
-        tag: 11.22.0-debian-11-r4
+        tag: 15.6.0-debian-12-r5
       bitnamishell:
         registry: docker.io
         repository: bitnami/os-shell
diff --git a/tests/golden/builtin/builtin/builtin/01_keycloak_helmchart/postgresql/templates/primary/statefulset.yaml b/tests/golden/builtin/builtin/builtin/01_keycloak_helmchart/postgresql/templates/primary/statefulset.yaml
index a102b7c9..5cc6d3a4 100644
--- a/tests/golden/builtin/builtin/builtin/01_keycloak_helmchart/postgresql/templates/primary/statefulset.yaml
+++ b/tests/golden/builtin/builtin/builtin/01_keycloak_helmchart/postgresql/templates/primary/statefulset.yaml
@@ -92,7 +92,7 @@ spec:
               value: error
             - name: POSTGRESQL_SHARED_PRELOAD_LIBRARIES
               value: pgaudit
-          image: docker.io/bitnami/postgresql:11.22.0-debian-11-r4
+          image: docker.io/bitnami/postgresql:15.6.0-debian-12-r5
           imagePullPolicy: IfNotPresent
           livenessProbe:
             exec:
diff --git a/tests/golden/openshift-postgres/openshift-postgres/openshift-postgres/01_keycloak_helmchart/postgresql/templates/primary/statefulset.yaml b/tests/golden/openshift-postgres/openshift-postgres/openshift-postgres/01_keycloak_helmchart/postgresql/templates/primary/statefulset.yaml
index 3c5fbeb0..0726ff21 100644
--- a/tests/golden/openshift-postgres/openshift-postgres/openshift-postgres/01_keycloak_helmchart/postgresql/templates/primary/statefulset.yaml
+++ b/tests/golden/openshift-postgres/openshift-postgres/openshift-postgres/01_keycloak_helmchart/postgresql/templates/primary/statefulset.yaml
@@ -92,7 +92,7 @@ spec:
               value: error
             - name: POSTGRESQL_SHARED_PRELOAD_LIBRARIES
               value: pgaudit
-          image: docker.io/bitnami/postgresql:11.22.0-debian-11-r4
+          image: docker.io/bitnami/postgresql:15.6.0-debian-12-r5
           imagePullPolicy: IfNotPresent
           livenessProbe:
             exec: