diff --git a/lib/taskana-core/src/main/java/pro/taskana/task/internal/TaskServiceImpl.java b/lib/taskana-core/src/main/java/pro/taskana/task/internal/TaskServiceImpl.java
index fc0c643ae..8f10aaa90 100644
--- a/lib/taskana-core/src/main/java/pro/taskana/task/internal/TaskServiceImpl.java
+++ b/lib/taskana-core/src/main/java/pro/taskana/task/internal/TaskServiceImpl.java
@@ -1347,7 +1347,7 @@ public class TaskServiceImpl implements TaskService {
       taskanaEngine.openConnection();
       task = (TaskImpl) getTask(taskId);
 
-      TaskImpl oldTask = duplicateTaskExactly(task);
+      final TaskImpl oldTask = duplicateTaskExactly(task);
       Instant now = Instant.now();
 
       checkPreconditionsForClaimTask(task, forceClaim);
@@ -1395,7 +1395,7 @@ public class TaskServiceImpl implements TaskService {
       task = (TaskImpl) getTask(taskId);
       task = (TaskImpl) beforeRequestReviewManager.beforeRequestReview(task);
 
-      TaskImpl oldTask = duplicateTaskExactly(task);
+      final TaskImpl oldTask = duplicateTaskExactly(task);
 
       if (force && task.getState().isEndState()) {
         throw new InvalidTaskStateException(
@@ -1448,7 +1448,7 @@ public class TaskServiceImpl implements TaskService {
       task = (TaskImpl) getTask(taskId);
       task = (TaskImpl) beforeRequestChangesManager.beforeRequestChanges(task);
 
-      TaskImpl oldTask = duplicateTaskExactly(task);
+      final TaskImpl oldTask = duplicateTaskExactly(task);
 
       if (force && task.getState().isEndState()) {
         throw new InvalidTaskStateException(
@@ -1593,7 +1593,7 @@ public class TaskServiceImpl implements TaskService {
     try {
       taskanaEngine.openConnection();
       task = (TaskImpl) getTask(taskId);
-      TaskImpl oldTask = duplicateTaskExactly(task);
+      final TaskImpl oldTask = duplicateTaskExactly(task);
 
       TaskState state = task.getState();
       if (!checkEditTasksPerm(task)) {
diff --git a/pom.xml b/pom.xml
index 74c1cd187..cac36df79 100644
--- a/pom.xml
+++ b/pom.xml
@@ -44,7 +44,7 @@
     <version.json>20240303</version.json>
 
     <!-- build dependencies -->
-    <version.checkstyle>10.14.0</version.checkstyle>
+    <version.checkstyle>10.17.0</version.checkstyle>
     <version.google-java-format>1.20.0</version.google-java-format>
     <version.maven.checkstyle>3.4.0</version.maven.checkstyle>
     <version.maven.jar>3.4.2</version.maven.jar>