diff --git a/src/starlite_saqlalchemy/settings.py b/src/starlite_saqlalchemy/settings.py
index ca803ba6..fdee98da 100644
--- a/src/starlite_saqlalchemy/settings.py
+++ b/src/starlite_saqlalchemy/settings.py
@@ -33,7 +33,7 @@ class Config:
     """Check for redis readiness on startup."""
     DEBUG: bool = False
     """Run `Starlite` with `debug=True`."""
-    ENVIRONMENT: str = "prod"
+    ENVIRONMENT: Literal["dev", "local", "prod", "stage", "test"] = "prod"
     """'dev', 'prod', etc."""
     NAME: str = "my-starlite-saqlalchemy-app"
     """Application name."""