diff --git a/build.gradle b/build.gradle
index dff8aeb5..ace050e8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -88,7 +88,7 @@ repositories {
 }
 
 pmd {
-    toolVersion = "6.55.0"
+    toolVersion = "7.21.0"
     ruleSetFiles = files("pmd-ruleset.xml")
     ruleSets = []
 }