diff --git a/buildSrc/src/main/java/org/springframework/boot/build/AsciidoctorConventions.java b/buildSrc/src/main/java/org/springframework/boot/build/AsciidoctorConventions.java
index 0950f456e29..7f53696ebe2 100644
--- a/buildSrc/src/main/java/org/springframework/boot/build/AsciidoctorConventions.java
+++ b/buildSrc/src/main/java/org/springframework/boot/build/AsciidoctorConventions.java
@@ -125,7 +125,7 @@ class AsciidoctorConventions {
 
 	private String determineGitHubTag(Project project) {
 		String version = "v" + project.getVersion();
-		return (version.endsWith("-SNAPSHOT")) ? "master" : version;
+		return (version.endsWith("-SNAPSHOT")) ? "main" : version;
 	}
 
 	private void configureOptions(AbstractAsciidoctorTask asciidoctorTask) {