diff --git a/amt/migrations/env.py b/amt/migrations/env.py
index 9f4b92b0..787d3f7c 100644
--- a/amt/migrations/env.py
+++ b/amt/migrations/env.py
@@ -20,12 +20,14 @@
 
 def get_url() -> str:
     scheme = os.getenv("APP_DATABASE_SCHEME", "sqlite")
-    driver = os.getenv("APP_DATABASE_DRIVER", "aiosqlite")
 
     if scheme == "sqlite":
+        driver = os.getenv("APP_DATABASE_DRIVER", "aiosqlite")
         file = os.getenv("APP_DATABASE_FILE", "database.sqlite3")
         return f"{scheme}+{driver}:///{file}"
 
+    driver = os.getenv("APP_DATABASE_DRIVER", "asyncpg")
+
     user = os.getenv("APP_DATABASE_USER", "amt")
     password = os.getenv("APP_DATABASE_PASSWORD", "")
     server = os.getenv("APP_DATABASE_SERVER", "db")