diff --git a/src/main/java/mops/gruppen2/domain/event/UpdateGroupDescriptionEvent.java b/src/main/java/mops/gruppen2/domain/event/UpdateGroupDescriptionEvent.java
index 714513b..83d4e88 100644
--- a/src/main/java/mops/gruppen2/domain/event/UpdateGroupDescriptionEvent.java
+++ b/src/main/java/mops/gruppen2/domain/event/UpdateGroupDescriptionEvent.java
@@ -3,6 +3,7 @@ package mops.gruppen2.domain.event;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
+import mops.gruppen2.domain.Group;
 
 /**
  * Ändert nur die Gruppenbeschreibung.
@@ -13,13 +14,12 @@ import lombok.NoArgsConstructor;
 public class UpdateGroupDescriptionEvent extends Event {
     String newGroupDescription;
 
-    public UpdateGroupDescriptionEvent(Long event_id, Long group_id, String user_id, String newGroupDescription) {
-        super(event_id, group_id, user_id);
-        this.newGroupDescription = newGroupDescription;
-    }
-
     public UpdateGroupDescriptionEvent(Long group_id, String user_id, String newGroupDescription) {
         super(group_id, user_id);
         this.newGroupDescription = newGroupDescription;
     }
+
+    public void apply(Group group) {
+        group.setDescription(this.newGroupDescription);
+    }
 }
diff --git a/src/main/java/mops/gruppen2/domain/event/UpdateGroupTitleEvent.java b/src/main/java/mops/gruppen2/domain/event/UpdateGroupTitleEvent.java
index f877b6b..dffb13d 100644
--- a/src/main/java/mops/gruppen2/domain/event/UpdateGroupTitleEvent.java
+++ b/src/main/java/mops/gruppen2/domain/event/UpdateGroupTitleEvent.java
@@ -3,6 +3,7 @@ package mops.gruppen2.domain.event;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
+import mops.gruppen2.domain.Group;
 
 /**
  * Ändert nur den Gruppentitel.
@@ -13,13 +14,13 @@ import lombok.NoArgsConstructor;
 public class UpdateGroupTitleEvent extends Event {
     String newGroupTitle;
 
-    public UpdateGroupTitleEvent(Long event_id, Long group_id, String user_id, String newGroupTitle) {
-        super(event_id, group_id, user_id);
-        this.newGroupTitle = newGroupTitle;
-    }
-
     public UpdateGroupTitleEvent(Long group_id, String user_id, String newGroupTitle) {
         super(group_id, user_id);
         this.newGroupTitle = newGroupTitle;
     }
+
+    public void apply(Group group) {
+        group.setTitle(this.newGroupTitle);
+    }
+
 }