diff --git a/pom.xml b/pom.xml
index 7adf1894..d30663ed 100644
--- a/pom.xml
+++ b/pom.xml
@@ -73,7 +73,7 @@
         <!-- @formatter:off -->
         <assertj.version>3.26.3</assertj.version>
         <buildplan-maven-plugin.version>1.5</buildplan-maven-plugin.version>
-        <checkstyle.version>10.20.0</checkstyle.version>
+        <checkstyle.version>10.21.4</checkstyle.version>
         <coverage.branches>100</coverage.branches>
         <coverage.instructions>100</coverage.instructions>
         <coverage.lines>100</coverage.lines>