diff --git a/idm/ldap-keycloak.yml b/idm/ldap-keycloak.yml
index 0b81622..a19aeaf 100644
--- a/idm/ldap-keycloak.yml
+++ b/idm/ldap-keycloak.yml
@@ -65,7 +65,7 @@ services:
     restart: always
 
   postgres:
-    image: postgres:alpine
+    image: postgres:17-alpine
     networks:
       opencloud-net:
     volumes:
diff --git a/testing/external-keycloak.yml b/testing/external-keycloak.yml
index b837f4d..2808fa4 100644
--- a/testing/external-keycloak.yml
+++ b/testing/external-keycloak.yml
@@ -1,7 +1,7 @@
 ---
 services:
   postgres:
-    image: postgres:alpine
+    image: postgres:17-alpine
     networks:
       opencloud-net:
     volumes: