diff --git a/.env.example b/.env.example
index 29e9178..356ccb1 100644
--- a/.env.example
+++ b/.env.example
@@ -1,13 +1,16 @@
 # PostgreSQL
+POSTGRES_IMAGE=postgis/postgis:17-3.5
 POSTGRES_USER=shiran
 POSTGRES_PASSWORD=change-me-postgres-password
 POSTGRES_DB=ciyuan_viewfinder
 POSTGRES_PGDATA=/var/lib/postgresql/data/pgdata
 
 # Redis
+REDIS_IMAGE=redis:7-alpine
 REDIS_URL=redis://redis:6379/0
 
 # MinIO / S3
+MINIO_IMAGE=minio/minio:latest
 MINIO_ROOT_USER=minioadmin
 MINIO_ROOT_PASSWORD=change-me-minio-password
 S3_ENDPOINT=http://minio:9000
@@ -31,5 +34,6 @@ LOG_JSON=false
 VITE_API_BASE=/api/v1
 
 # Nginx host ports
+NGINX_IMAGE=nginx:1.27-alpine
 CLIENT_WEB_PORT=5173
 ADMIN_WEB_PORT=5174
diff --git a/docker-compose.yml b/docker-compose.yml
index cc42105..5e87e95 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -2,7 +2,7 @@ version: "3.8"
 
 services:
   postgres:
-    image: postgis/postgis:17-3.5
+    image: "${POSTGRES_IMAGE}"
     container_name: ciyuan-postgres
     environment:
       POSTGRES_USER: "${POSTGRES_USER}"
@@ -25,7 +25,7 @@ services:
       - ciyuan-net
 
   redis:
-    image: redis:7-alpine
+    image: "${REDIS_IMAGE}"
     container_name: ciyuan-redis
     expose:
       - "6379"
@@ -41,7 +41,7 @@ services:
       - ciyuan-net
 
   minio:
-    image: minio/minio:latest
+    image: "${MINIO_IMAGE}"
     container_name: ciyuan-minio
     command: server /data --console-address ":9001"
     environment:
@@ -132,7 +132,7 @@ services:
       - ciyuan-net
 
   nginx:
-    image: nginx:1.27-alpine
+    image: "${NGINX_IMAGE}"
     container_name: ciyuan-nginx
     ports:
       - "${CLIENT_WEB_PORT}:80"