diff --git a/compose.yaml b/compose.yaml
index fa814e7..1e33ae1 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -7,8 +7,8 @@ services:
     #  - "3000:3000"
     environment:
       - RAILS_ENV=production
-      - DATABASE_URL=postgresql://postgres:xxx@db:5432/db
-      - RAILS_MASTER_KEY=xxx
+      - DATABASE_URL=postgresql://postgres:${PG_PASSWORD}@db:5432/db
+      - RAILS_MASTER_KEY=${RAILS_MASTER_KEY}
       - REDIS_URL=redis://redis:6379/0
     depends_on:
       - db
@@ -19,8 +19,8 @@ services:
     command: bundle exec sidekiq
     environment:
       - RAILS_ENV=production
-      - DATABASE_URL=postgresql://postgres:xxx@db:5432/db
-      - RAILS_MASTER_KEY=xxx
+      - DATABASE_URL=postgresql://postgres:${PG_PASSWORD}@db:5432/db
+      - RAILS_MASTER_KEY=${RAILS_MASTER_KEY}
       - REDIS_URL=redis://redis:6379/0
     depends_on:
       - db
@@ -31,7 +31,7 @@ services:
     volumes:
       - ../taw_data/pg:/var/lib/postgresql/data
     environment:
-      - POSTGRES_PASSWORD=xxx
+      - POSTGRES_PASSWORD=${PG_PASSWORD}
       - POSTGRES_DB=db
 
   redis: