vale

Author: norareidy

source/security/authentication/aws-iam.txt

@@ -259,7 +259,7 @@ factory method.
 .. tip::
 
    You can supply only programmatic access keys to the
-   ``MongoCredential.createAwsCredential()`` method. If you need to supply ECS
+   ``MongoCredential.createAwsCredential()`` method. If you must supply ECS
    or EC2 container credentials, follow the instructions in
    :ref:`<kotlin-mongodb-aws-env-variables>`.