diff --git a/internal/cognitoauth/readme.md b/internal/cognitoauth/readme.md
index 85bb9ab5..0017bac7 100644
--- a/internal/cognitoauth/readme.md
+++ b/internal/cognitoauth/readme.md
@@ -31,6 +31,10 @@ The package reads configuration from environment variables:
 - `AWS_REGION`: AWS region where your Cognito User Pool is located (us-east-2)
 - `DEBUG`: Set to "true" for debug logging
 
+## Feature flag
+You can disable all of the auth features with the following environment variable:
+`DISABLE_AUTH=true`
+
 ## Route Permissions
 Route permissions are hard-coded in the `route_permissions.go` file.  
 In the future we may