diff --git a/spring-cloud-function/3.0.0.M1/aws.html b/spring-cloud-function/3.0.0.M1/aws.html
index 10fafcf8..1806addf 100644
--- a/spring-cloud-function/3.0.0.M1/aws.html
+++ b/spring-cloud-function/3.0.0.M1/aws.html
@@ -183,7 +183,7 @@ then additional transformers must be configured as part of the maven-shade-plugi
 </div>
 </div>
 <div class="sect1">
-<h4 id="_build_file_setup"><a class="link" href="#_build_file_setup">Build file setup</a></h4>
+<h2 id="_build_file_setup"><a class="link" href="#_build_file_setup">Build file setup</a></h2>
 <div class="paragraph">
 <p>In order to run Spring Cloud Function applications on AWS Lambda, you can leverage Maven or Gradle
  plugins offered by the cloud platform provider.</p>