diff --git a/README.md b/README.md
index 11e0060..272721a 100644
--- a/README.md
+++ b/README.md
@@ -148,8 +148,8 @@ module "egress_space" {
 ## Testing
 
 
-> **Warning**
-Tests provision resources in the real world when not using `mock_provider`! Take care that `CF_USER`/`CF_PASSWORD` are set to an account in a suitable non-production space. If other providers, such as the AWS provider, are used, ensure the same care is taken with their credentials in your shell before running `terraform test`.
+> [!WARN]
+> Tests provision resources in the real world when not using `mock_provider`! Take care that `CF_USER`/`CF_PASSWORD` are set to an account in a suitable non-production space. If other providers, such as the AWS provider, are used, ensure the same care is taken with their credentials in your shell before running `terraform test`.
 
 [Terraform tests](https://developer.hashicorp.com/terraform/language/tests) are in progress of being written. To run for any module with a `tests` directory: