diff --git a/backend/src/main/java/core/entities/timemanager/Task.java b/backend/src/main/java/core/entities/timemanager/Task.java
index 52d38cd..41e68a9 100644
--- a/backend/src/main/java/core/entities/timemanager/Task.java
+++ b/backend/src/main/java/core/entities/timemanager/Task.java
@@ -34,7 +34,7 @@ public class Task {
     @OneToOne(mappedBy = "task", cascade = CascadeType.ALL, orphanRemoval = true)
     private TaskSerieItem taskSerieItem;
 
-    @OneToMany(mappedBy = "parent", cascade = CascadeType.ALL, orphanRemoval = true, fetch = FetchType.EAGER)
+    @OneToMany(mappedBy = "parent", cascade = CascadeType.REMOVE, orphanRemoval = true, fetch = FetchType.EAGER)
     private Set<Task> subtasks;
 
     @ManyToOne