diff --git a/simplemind/settings.py b/simplemind/settings.py
index d840ae7..ad604a5 100644
--- a/simplemind/settings.py
+++ b/simplemind/settings.py
@@ -18,9 +18,7 @@ class LoggingConfig(BaseSettings):
 class Settings(BaseSettings):
     """The class that holds all the API keys for the application."""
 
-    AMAZON_API_KEY: Optional[SecretStr] = Field(
-        "default", description="AWS Named Profile"
-    )
+    AMAZON_API_KEY: Optional[SecretStr] = Field(None, description="AWS Named Profile")
     ANTHROPIC_API_KEY: Optional[SecretStr] = Field(
         None, description="API key for Anthropic"
     )