diff --git a/build.gradle b/build.gradle
index e308264a..e08e3bc4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
     dependencies {
         classpath "org.grails:grails-gradle-plugin:$grailsVersion"
         classpath "com.bertramlabs.plugins:asset-pipeline-gradle:3.2.5"
-        classpath 'org.asciidoctor:asciidoctor-gradle-plugin:1.5.3'
+        classpath 'org.asciidoctor:asciidoctor-gradle-plugin:1.6.1'
     }
 }