diff --git a/build.gradle b/build.gradle
index 003571f0..515c1f61 100644
--- a/build.gradle
+++ b/build.gradle
@@ -91,7 +91,7 @@ allprojects {
 
   checkstyle {
     maxWarnings = 0
-    toolVersion = '10.18.2'
+    toolVersion = '10.21.1'
     // need to set configDir to rootDir otherwise submodule will use submodule/config/checkstyle
     getConfigDirectory().set(new File(rootDir, 'config/checkstyle'))
   }