diff --git a/docker/postgresql/postgresql.yml b/docker/postgresql/postgresql.yml
index f7d17ac..ca4cd9e 100644
--- a/docker/postgresql/postgresql.yml
+++ b/docker/postgresql/postgresql.yml
@@ -1,7 +1,7 @@
 version: "3.7"
 services:
   isard-apps-postgresql:
-    image: postgres:13.5-alpine3.15
+    image: ${POSTGRESQL_IMG-postgres:13.5-alpine3.15}
     container_name: isard-apps-postgresql
     restart: unless-stopped
     env_file: .env