diff --git a/class/defaults.yml b/class/defaults.yml
index 82d0d357..030ba5e0 100644
--- a/class/defaults.yml
+++ b/class/defaults.yml
@@ -51,7 +51,7 @@ parameters:
       postgresql:
         registry: docker.io
         repository: bitnami/postgresql
-        tag: 11.17.0-debian-11-r37
+        tag: 11.21.0-debian-11-r37
       bitnamishell:
         registry: docker.io
         repository: bitnami/bitnami-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 86ca17c2..185b3699 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
@@ -90,7 +90,7 @@ spec:
               value: error
             - name: POSTGRESQL_SHARED_PRELOAD_LIBRARIES
               value: pgaudit
-          image: docker.io/bitnami/postgresql:11.17.0-debian-11-r37
+          image: docker.io/bitnami/postgresql:11.21.0-debian-11-r37
           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 37bd55e9..77495ddc 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
@@ -90,7 +90,7 @@ spec:
               value: error
             - name: POSTGRESQL_SHARED_PRELOAD_LIBRARIES
               value: pgaudit
-          image: docker.io/bitnami/postgresql:11.17.0-debian-11-r37
+          image: docker.io/bitnami/postgresql:11.21.0-debian-11-r37
           imagePullPolicy: IfNotPresent
           livenessProbe:
             exec: