diff --git a/pom.xml b/pom.xml
index 1cb5b1f..a1c8197 100644
--- a/pom.xml
+++ b/pom.xml
@@ -24,7 +24,7 @@
         <spotbugs-annotations.version>4.9.8</spotbugs-annotations.version>
         <findsecbugs.version>1.14.0</findsecbugs.version>
         <pmd-plugin.version>3.28.0</pmd-plugin.version>
-        <pmd.version>7.20.0</pmd.version>
+        <pmd.version>7.21.0</pmd.version>
         <checkstyle-plugin.version>3.6.0</checkstyle-plugin.version>
         <checkstyle.version>13.0.0</checkstyle.version>