diff --git a/pom.xml b/pom.xml
index fcf38c4..c22906b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -16,14 +16,14 @@
 
   <dependencies>
     <dependency>
-      <groupId>ch.qos.logback</groupId>
-      <artifactId>logback-classic</artifactId>
-      <version>1.4.5</version>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-simple</artifactId>
+      <version>2.0.5</version>
     </dependency>
     <dependency>
       <groupId>org.projectlombok</groupId>
       <artifactId>lombok</artifactId>
-      <version>1.18.24</version>
+      <version>1.18.28</version>
     </dependency>
     <dependency>
       <groupId>com.mortennobel</groupId>
diff --git a/src/main/java/de/ph87/kindermalen/toolbox/tool/stamp/StampButtonList.java b/src/main/java/de/ph87/kindermalen/toolbox/tool/stamp/StampButtonList.java
index c338e41..96def49 100644
--- a/src/main/java/de/ph87/kindermalen/toolbox/tool/stamp/StampButtonList.java
+++ b/src/main/java/de/ph87/kindermalen/toolbox/tool/stamp/StampButtonList.java
@@ -1,13 +1,12 @@
 package de.ph87.kindermalen.toolbox.tool.stamp;
 
-import de.ph87.kindermalen.MyComponent;
-import lombok.extern.slf4j.Slf4j;
+import de.ph87.kindermalen.*;
+import lombok.extern.slf4j.*;
 
 import java.awt.*;
-import java.util.Comparator;
+import java.util.*;
 
-import static de.ph87.kindermalen.CONFIG.SIDEBAR_WIDTH;
-import static de.ph87.kindermalen.CONFIG.STAMP_BUTTON_SIZE;
+import static de.ph87.kindermalen.CONFIG.*;
 
 @Slf4j
 public class StampButtonList extends MyComponent {
@@ -27,9 +26,9 @@ public class StampButtonList extends MyComponent {
       removeAll();
       if (stampTool.getActiveGroup() != null) {
         stampTool.getActiveGroup().getStamps().stream()
-                .sorted(Comparator.comparing(Stamp::getFile))
-                .map(stamp -> new StampButton(stampTool, stamp))
-                .forEach(this::add);
+            .sorted(Comparator.comparing(Stamp::getFile))
+            .map(stamp -> new StampButton(stampTool, stamp))
+            .forEach(this::add);
         setPreferredSize(new Dimension(SIDEBAR_WIDTH, ((int) Math.ceil((double) getComponentCount() * STAMP_BUTTON_SIZE / SIDEBAR_WIDTH) * STAMP_BUTTON_SIZE)));
       }
     }