diff --git a/build.gradle b/build.gradle
index 0ee0e7fd..baf70611 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,7 +3,7 @@ plugins {
   id 'java' //java support
   id 'groovy' // groovy support
   id 'pmd' // code check, working on source code
-  id 'com.diffplug.spotless' version '6.0.5'//code format
+  id 'com.diffplug.spotless' version '6.1.0'//code format
   id 'com.github.spotbugs' version '5.0.3' // code check, working on byte code
   id 'de.undercouch.download' version '4.1.2'
   id 'kr.motd.sphinx' version '2.10.1' // documentation generation