diff --git a/pom.xml b/pom.xml
index e67f6f4..355777a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <rxjava.version>3.1.11</rxjava.version>
         <javadoc.version>3.11.3</javadoc.version>
-        <pmd.version>3.21.2</pmd.version>
+        <pmd.version>3.28.0</pmd.version>
         <project.info.version>3.9.0</project.info.version>
         <jxr.version>3.6.0</jxr.version>
         <taglist.version>3.2.1</taglist.version>