diff --git a/docker-compose-demo.yml b/docker-compose-demo.yml
index c3556ba..c32c872 100644
--- a/docker-compose-demo.yml
+++ b/docker-compose-demo.yml
@@ -15,7 +15,7 @@ services:
       - EXTRA_JAVA_OPTS=-Xms1G -Xmx2G
       - POSTGRES_JNDI_ENABLED=true
       - POSTGRES_HOST=postgis
-      - POSTGRES_PORT=5432
+      - POSTGRES_PORT=5555
       - POSTGRES_DB=geoserver
       - POSTGRES_USERNAME=geoserver
       - POSTGRES_PASSWORD=geoserver
@@ -31,4 +31,4 @@ services:
       POSTGRES_USER: geoserver
       POSTGRES_PASSWORD: geoserver
     volumes:
-      - ./postgis/postgresql_data:/var/lib/postgresql/data:Z
\ No newline at end of file
+      - ./postgis/postgresql_data:/var/lib/postgresql/data:Z