diff --git a/.env.example b/.env.example
index d6093a3..225220a 100644
--- a/.env.example
+++ b/.env.example
@@ -9,7 +9,7 @@ RENTMAN_API_TOKEN=
 JWT_SECRET=
 
 # --- Database ---
-DATABASE_URL=postgresql://hms:hms@postgres:5432/hms
+DATABASE_URL=postgresql+asyncpg://hms:hms@postgres:5432/hms
 
 # --- Redis ---
 REDIS_URL=redis://redis:6379/0
diff --git a/backend/requirements.txt b/backend/requirements.txt
index 7283440..75490a5 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -4,7 +4,7 @@ sqlalchemy[asyncio]>=2.0.30
 asyncpg>=0.29.0
 aiosqlite>=0.20.0
 redis>=5.0.0
-pydantic>=2.7.0
+pydantic[email]>=2.7.0
 pydantic-settings>=2.3.0
 python-jose[cryptography]>=3.3.0
 passlib[bcrypt]>=1.7.4
diff --git a/docker-compose.yml b/docker-compose.yml
index ba7065a..c068c8b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -28,7 +28,7 @@ services:
       redis:
         condition: service_healthy
     environment:
-      - DATABASE_URL=${DATABASE_URL:-postgresql://hms:hms@postgres:5432/hms}
+      - DATABASE_URL=${DATABASE_URL:-postgresql+asyncpg://hms:hms@postgres:5432/hms}
       - REDIS_URL=${REDIS_URL:-redis://redis:6379/0}
       - RENTMAN_API_TOKEN=${RENTMAN_API_TOKEN}
       - JWT_SECRET=${JWT_SECRET}