diff --git a/.env.example b/.env.example
index 8df547e37..713826f50 100644
--- a/.env.example
+++ b/.env.example
@@ -9,7 +9,8 @@ REDIS_PASSWORD=<INSERT_REDIS_PASSWORD>
 POSTGRES_DB=ghostfolio-db
 POSTGRES_USER=user
 POSTGRES_PASSWORD=<INSERT_POSTGRES_PASSWORD>
+POSTGRES_PORT=5432
 
 ACCESS_TOKEN_SALT=<INSERT_RANDOM_STRING>
-DATABASE_URL=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@localhost:5432/${POSTGRES_DB}?connect_timeout=300&sslmode=prefer
+DATABASE_URL=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@localhost:${POSTGRES_PORT}/${POSTGRES_DB}?connect_timeout=300&sslmode=prefer
 JWT_SECRET_KEY=<INSERT_RANDOM_STRING>
diff --git a/docker/docker-compose.dev.yml b/docker/docker-compose.dev.yml
index 38e38f30d..7c6e5e28a 100644
--- a/docker/docker-compose.dev.yml
+++ b/docker/docker-compose.dev.yml
@@ -7,7 +7,7 @@ services:
     env_file:
       - ../.env
     ports:
-      - 5432:5432
+      - ${POSTGRES_PORT:-5432}:5432
     volumes:
       - postgres:/var/lib/postgresql/data
   redis:
@@ -15,7 +15,7 @@ services:
     container_name: redis
     restart: unless-stopped
     ports:
-      - 6379:6379
+      - ${REDIS_PORT:-6379}:6379
 
 volumes:
   postgres: