diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 2a71daee4..b1672b0f4 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -14,7 +14,7 @@ Extensive contribution guidelines are available in the repository at
 
 https://cryptography.io/en/latest/contributing/
 
-.. attention::
+.. highlights::
 
     To report a security issue, please follow the special `security reporting
     guidelines`_, do not report them in the public issue tracker.