diff --git a/.env.example b/.env.example
index 55aed18..9bd751f 100644
--- a/.env.example
+++ b/.env.example
@@ -201,8 +201,10 @@ GOOGLE_PROJECT_NUMBER=GOOGLE_PROJECT_NUMBER
 # PostgreSQL - You can change these to any PostgreSQL database that has logical replication enabled.
 ############
 
-POSTGRES_DB=n8n
-POSTGRES_USER=root
+POSTGRES_HOST=db
+POSTGRES_DB=postgres
+POSTGRES_PORT=5432
+POSTGRES_USER=postgres
 
 ############
 # Supavisor -- Database pooler and others that can be left as default values
diff --git a/docker-compose.yml b/docker-compose.yml
index 22416fd..df27dcb 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -6,7 +6,7 @@ volumes:
   opencode_data:
   open_webui_data:
   open_webui_pipelines_data:
-  postgres_data:
+  langfuse_postgres_data:
   langfuse_clickhouse_data:
   langfuse_clickhouse_logs:
   langfuse_minio_data:
@@ -286,18 +286,18 @@ services:
     container_name: postgres
     restart: unless-stopped
     healthcheck:
-      test: ['CMD-SHELL', 'pg_isready -h localhost -U ${POSTGRES_USER} -d ${POSTGRES_DB}']
+      test: ["CMD-SHELL", "pg_isready -U postgres"]
       interval: 3s
       timeout: 3s
       retries: 10
     expose:
       - 5432/tcp
     environment:
-      - POSTGRES_USER
-      - POSTGRES_PASSWORD
-      - POSTGRES_DB
+      POSTGRES_DB: postgres
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
     volumes:
-      - postgres_data:/var/lib/postgresql/data
+      - langfuse_postgres_data:/var/lib/postgresql/data
 
   qdrant:
     profiles: ["n8n", "n8n-all", "ai-all"]