diff --git a/build.gradle b/build.gradle
index 8d67a3f3..dd0d9713 100644
--- a/build.gradle
+++ b/build.gradle
@@ -79,7 +79,7 @@ subprojects {
 
     }
     pmd {
-        toolVersion = "7.18.0"
+        toolVersion = "7.21.0"
         consoleOutput = true
         sourceSets = [sourceSets.main]
         ruleSetFiles = files("${rootProject.projectDir}/config/pmd/pmd.xml")