diff --git a/build.gradle b/build.gradle
index f10e5263..02f334b0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -37,7 +37,7 @@ buildscript {
 
 plugins {
     id 'java-library'
-    id "com.diffplug.spotless" version "6.20.0" apply false
+    id "com.diffplug.spotless" version "6.21.0" apply false
     id 'jacoco'
     id "com.form.diff-coverage" version "0.9.5"
     // for javadocs and checks spotless doesn't do