diff --git a/patch-diff-report-tool/pom.xml b/patch-diff-report-tool/pom.xml
index 65dc941f..15215378 100644
--- a/patch-diff-report-tool/pom.xml
+++ b/patch-diff-report-tool/pom.xml
@@ -9,7 +9,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <checkstyle.version>10.19.0</checkstyle.version>
+        <checkstyle.version>10.20.0</checkstyle.version>
         <checkstyle.configLocation>https://raw.githubusercontent.com/checkstyle/checkstyle/checkstyle-${checkstyle.version}/config/checkstyle-checks.xml</checkstyle.configLocation>
         <maven.plugin.antrun.version>3.1.0</maven.plugin.antrun.version>
         <maven.compiler.source>11</maven.compiler.source>
diff --git a/releasenotes-builder/pom.xml b/releasenotes-builder/pom.xml
index f78b1ce1..5d906b7f 100644
--- a/releasenotes-builder/pom.xml
+++ b/releasenotes-builder/pom.xml
@@ -21,7 +21,7 @@
         <maven.plugin.twitter4j.version>4.1.2</maven.plugin.twitter4j.version>
         <maven.plugin.javax.mail.version>1.5.0-b01</maven.plugin.javax.mail.version>
         <java.version>11</java.version>
-        <checkstyle.version>10.19.0</checkstyle.version>
+        <checkstyle.version>10.20.0</checkstyle.version>
         <checkstyle.configLocation>https://raw.githubusercontent.com/checkstyle/checkstyle/checkstyle-${checkstyle.version}/config/checkstyle-checks.xml</checkstyle.configLocation>
         <junit.version>4.13.2</junit.version>
         <mockito.version>5.2.0</mockito.version>