diff --git a/README.adoc b/README.adoc
index 813174ac..7ff2946e 100644
--- a/README.adoc
+++ b/README.adoc
@@ -327,7 +327,7 @@ $ ./docs/src/main/ruby/generate_readme.sh > README.adoc
 
 This script requires ruby and the asciidoctor gem installed (`gem install asciidoctor`)
 
-:jdkversion: 17
+:jdkversion: 1.8
 
 === Basic Compile and Test
 
diff --git a/docs/src/main/asciidoc/README.adoc b/docs/src/main/asciidoc/README.adoc
index 4f74e3d2..70836f09 100644
--- a/docs/src/main/asciidoc/README.adoc
+++ b/docs/src/main/asciidoc/README.adoc
@@ -62,8 +62,8 @@ $ ./docs/src/main/ruby/generate_readme.sh > README.adoc
 
 This script requires ruby and the asciidoctor gem installed (`gem install asciidoctor`)
 
-include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/docs/src/main/asciidoc/building.adoc[]
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.1.x/docs/src/main/asciidoc/building.adoc[]
 
 == Contributing
 
-include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/docs/src/main/asciidoc/contributing.adoc[]
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.1.x/docs/src/main/asciidoc/contributing.adoc[]