diff --git a/build.gradle b/build.gradle
index 2b7778b..020dda8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -37,7 +37,7 @@ sourceSets {
 
 checkstyle {
     maxWarnings = 0
-    toolVersion = '10.20.2'
+    toolVersion = '10.21.0'
     configDirectory = new File(rootDir, 'config/checkstyle')
 }