diff --git a/.github/workflows/bld.yml b/.github/workflows/bld.yml
index bf65051..f7e10f8 100644
--- a/.github/workflows/bld.yml
+++ b/.github/workflows/bld.yml
@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        java-version: [17, 21, 22]
+        java-version: [17, 21, 23]
 
     steps:
       - name: Checkout source repository
diff --git a/README.md b/README.md
index cac59a4..645b2c1 100644
--- a/README.md
+++ b/README.md
@@ -37,5 +37,5 @@ not provided by the extension. For example:
 
 ```java
 repositories = List.of(MAVEN_CENTRAL);
-scope(test).include(dependency("com.puppycrawl.tools", "checkstyle", version(10, 18, 2)));
+scope(test).include(dependency("com.puppycrawl.tools", "checkstyle", version(10, 19, 0)));
 ```
diff --git a/config/pmd.xml b/config/pmd.xml
index 3d3203c..2641880 100644
--- a/config/pmd.xml
+++ b/config/pmd.xml
@@ -7,9 +7,9 @@
     <!-- BEST PRACTICES -->
     <rule ref="category/java/bestpractices.xml">
         <exclude name="AvoidPrintStackTrace"/>
-        <exclude name="JUnit4TestShouldUseTestAnnotation"/>
-        <exclude name="JUnitTestContainsTooManyAsserts"/>
         <exclude name="GuardLogStatement"/>
+        <exclude name="UnitTestContainsTooManyAsserts"/>
+        <exclude name="UnitTestShouldUseTestAnnotation"/>
     </rule>
 
     <rule ref="category/java/bestpractices.xml/MissingOverride">
diff --git a/examples/lib/bld/bld-wrapper.properties b/examples/lib/bld/bld-wrapper.properties
index d673d49..1a304ce 100644
--- a/examples/lib/bld/bld-wrapper.properties
+++ b/examples/lib/bld/bld-wrapper.properties
@@ -1,7 +1,7 @@
 bld.downloadExtensionJavadoc=false
 bld.downloadExtensionSources=true
 bld.downloadLocation=
-bld.extension-checkstyle=com.uwyn.rife2:bld-checkstyle:1.0.5
+bld.extension-checkstyle=com.uwyn.rife2:bld-checkstyle:1.0.6
 bld.repositories=MAVEN_LOCAL,MAVEN_CENTRAL,RIFE2_SNAPSHOTS,RIFE2_RELEASES
 bld.sourceDirectories=
 bld.version=2.1.0
diff --git a/examples/src/bld/java/com/example/ExamplesBuild.java b/examples/src/bld/java/com/example/ExamplesBuild.java
index df0f79a..f8fee6b 100644
--- a/examples/src/bld/java/com/example/ExamplesBuild.java
+++ b/examples/src/bld/java/com/example/ExamplesBuild.java
@@ -23,7 +23,7 @@ public class ExamplesBuild extends BaseProject {
         
         repositories = List.of(MAVEN_CENTRAL);
 
-        scope(test).include(dependency("com.puppycrawl.tools", "checkstyle", version(10, 18, 2)));
+        scope(test).include(dependency("com.puppycrawl.tools", "checkstyle", version(10, 19, 0)));
 
         testOperation().mainClass("com.example.ExamplesTest");
     }
diff --git a/lib/bld/bld-wrapper.properties b/lib/bld/bld-wrapper.properties
index a283f1b..196e2c9 100644
--- a/lib/bld/bld-wrapper.properties
+++ b/lib/bld/bld-wrapper.properties
@@ -2,7 +2,7 @@ bld.downloadExtensionJavadoc=false
 bld.downloadExtensionSources=true
 bld.downloadLocation=
 bld.extension-exec=com.uwyn.rife2:bld-exec:1.0.3
-bld.extension-pmd=com.uwyn.rife2:bld-pmd:1.1.6
+bld.extension-pmd=com.uwyn.rife2:bld-pmd:1.1.7
 bld.repositories=MAVEN_CENTRAL,MAVEN_LOCAL,RIFE2_SNAPSHOTS,RIFE2_RELEASES
 bld.sourceDirectories=
 bld.version=2.1.0
diff --git a/src/bld/java/rife/bld/extension/CheckstyleOperationBuild.java b/src/bld/java/rife/bld/extension/CheckstyleOperationBuild.java
index e3a9e06..2b0c0c5 100644
--- a/src/bld/java/rife/bld/extension/CheckstyleOperationBuild.java
+++ b/src/bld/java/rife/bld/extension/CheckstyleOperationBuild.java
@@ -33,7 +33,7 @@ public class CheckstyleOperationBuild extends Project {
     public CheckstyleOperationBuild() {
         pkg = "rife.bld.extension";
         name = "CheckstyleOperation";
-        version = version(1, 0, 5);
+        version = version(1, 0, 6);
 
         javaRelease = 17;
 
@@ -45,9 +45,9 @@ public class CheckstyleOperationBuild extends Project {
         scope(compile)
                 .include(dependency("com.uwyn.rife2", "bld", version(2, 1, 0)));
         scope(test)
-                .include(dependency("com.puppycrawl.tools", "checkstyle", version(10, 18, 2)))
-                .include(dependency("org.junit.jupiter", "junit-jupiter", version(5, 11, 1)))
-                .include(dependency("org.junit.platform", "junit-platform-console-standalone", version(1, 11, 1)))
+                .include(dependency("com.puppycrawl.tools", "checkstyle", version(10, 19, 0)))
+                .include(dependency("org.junit.jupiter", "junit-jupiter", version(5, 11, 3)))
+                .include(dependency("org.junit.platform", "junit-platform-console-standalone", version(1, 11, 3)))
                 .include(dependency("org.assertj", "assertj-core", version(3, 26, 3)));
 
         javadocOperation()
diff --git a/src/main/java/rife/bld/extension/checkstyle/OutputFormat.java b/src/main/java/rife/bld/extension/checkstyle/OutputFormat.java
index c37a585..6ff411b 100644
--- a/src/main/java/rife/bld/extension/checkstyle/OutputFormat.java
+++ b/src/main/java/rife/bld/extension/checkstyle/OutputFormat.java
@@ -26,6 +26,9 @@ public enum OutputFormat {
 
     public final String label;
 
+    /**
+     * Sets the label of this output format.
+     */
     OutputFormat(String label) {
         this.label = label;
     }
diff --git a/src/test/java/rife/bld/extension/CheckstyleOperationTest.java b/src/test/java/rife/bld/extension/CheckstyleOperationTest.java
index 53ff576..e532cdf 100644
--- a/src/test/java/rife/bld/extension/CheckstyleOperationTest.java
+++ b/src/test/java/rife/bld/extension/CheckstyleOperationTest.java
@@ -38,7 +38,6 @@ import java.util.logging.Logger;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatCode;
 
-
 class CheckstyleOperationTest {
     public static final String SRC_MAIN_JAVA = "src/main/java";
     public static final String SRC_TEST_JAVA = "src/test/java";