diff --git a/com.avaloq.tools.ddk.xtext.builder/src/com/avaloq/tools/ddk/xtext/builder/BuilderWatchdog.java b/com.avaloq.tools.ddk.xtext.builder/src/com/avaloq/tools/ddk/xtext/builder/BuilderWatchdog.java
index a263ce69cc..399587428e 100644
--- a/com.avaloq.tools.ddk.xtext.builder/src/com/avaloq/tools/ddk/xtext/builder/BuilderWatchdog.java
+++ b/com.avaloq.tools.ddk.xtext.builder/src/com/avaloq/tools/ddk/xtext/builder/BuilderWatchdog.java
@@ -29,6 +29,7 @@
  * Watchdog that keeps track of sources processed during a build. When the builder fails to report progress for a period of time, a warning will be logged,
  * along with the stack traces for all threads of the running application.
  */
+@SuppressWarnings("PMD.OverridingThreadRun") // Intentionally a Thread subclass: named thread with start()/interrupt() lifecycle managed by MonitoredClusteringBuilderState.
 public class BuilderWatchdog extends Thread {
 
   private static final Logger LOGGER = LogManager.getLogger(BuilderWatchdog.class);
diff --git a/ddk-configuration/pmd/ruleset.xml b/ddk-configuration/pmd/ruleset.xml
index 0032b26e3d..fca513e06f 100644
--- a/ddk-configuration/pmd/ruleset.xml
+++ b/ddk-configuration/pmd/ruleset.xml
@@ -85,7 +85,7 @@
     <exclude name="NonExhaustiveSwitch"/>
     <exclude name="UnnecessaryWarningSuppression"/> <!--Experimental, too many false positives-->
     <exclude name="UnusedLocalVariable"/><!--Checkstyle-->
-    <exclude name="JUnit5TestShouldBePackagePrivate"/>
+    <exclude name="JUnitJupiterTestShouldBePackagePrivate"/>
   </rule>
   <rule ref="category/java/bestpractices.xml/GuardLogStatement">
     <properties>
diff --git a/ddk-parent/pom.xml b/ddk-parent/pom.xml
index 491a7ab048..6ad1d91608 100644
--- a/ddk-parent/pom.xml
+++ b/ddk-parent/pom.xml
@@ -53,7 +53,7 @@
     <spotbugs.plugin.version>4.9.8.3</spotbugs.plugin.version>
     <spotbugs.version>4.9.8</spotbugs.version>
     <pmd.plugin.version>3.28.0</pmd.plugin.version>
-    <pmd.version>7.24.0</pmd.version>
+    <pmd.version>7.25.0</pmd.version>
     <tycho.version>5.0.3</tycho.version>
     <xtend.version>2.43.0</xtend.version>