diff --git a/build/docker-compose.yml b/build/docker-compose.yml
index a245a93e6..5ea0dab8d 100644
--- a/build/docker-compose.yml
+++ b/build/docker-compose.yml
@@ -3,6 +3,8 @@ services:
   backend:
     build:
       context: ../backend
+    depends_on:
+      - postgres
     command:
         - /bin/bash
         - -c
@@ -36,12 +38,12 @@ services:
      - frontend
   postgres:
     container_name: bt_postgres
-    image: postgres:latest
+    image: postgres:12.6
     volumes:
       - ./bt_main.dump:/bt_main.dump
       - ./postgres-data:/var/lib/postgresql/data
     ports:
-      - "54321:5432"
+      - "5432:5432"
     environment:
       - "POSTGRES_DB=bt_main"
       - "POSTGRES_USER=bt"