diff --git a/pom.xml b/pom.xml
index c5dc927..1f1e2ee 100644
--- a/pom.xml
+++ b/pom.xml
@@ -59,7 +59,7 @@
     <project.build.outputTimestamp>2026-03-17T10:41:02Z</project.build.outputTimestamp>
 
     <!-- build tool versions -->
-    <checkstyle.version>12.3.1</checkstyle.version>
+    <checkstyle.version>13.4.2</checkstyle.version>
     <maven-checkstyle-plugin.version>3.6.0</maven-checkstyle-plugin.version>
     <spotless-maven-plugin.version>3.4.0</spotless-maven-plugin.version>
     <templating-maven-plugin.version>3.1.0</templating-maven-plugin.version>