diff --git a/core/apps/finance/serializers/cash_transaction.py b/core/apps/finance/serializers/cash_transaction.py
index dff085f..8f2b20d 100644
--- a/core/apps/finance/serializers/cash_transaction.py
+++ b/core/apps/finance/serializers/cash_transaction.py
@@ -40,12 +40,33 @@ class CashTransactionListSerializer(serializers.ModelSerializer):
 
 
 class CashTransactionUpdateSerializer(serializers.ModelSerializer):
+    project_ids = serializers.ListField(child=serializers.UUIDField(required=False), required=False)
+
     class Meta:
         model = CashTransaction
         fields = [
-            'name', 'payment_type', 'employees', 'status', 'folder',
+            'name', 'payment_type', 'employees', 'status', 'folder', 'project_ids'
         ]
 
+    def update(self, instance, validated_data):
+        instance.name = validated_data.get('name', instance.name)
+        instance.payment_type = validated_data.get('payment_type', instance.payment_type)
+        instance.status = validated_data.get('status', instance.status)
+        instance.folder = validated_data.get('folder', instance.folder)  # `folter` o‘rniga `folder`
+        
+        employees = validated_data.get('employees', None)
+        if employees is not None:
+            instance.employees.set(employees)
+        
+        project_ids = validated_data.pop('project_ids', [])
+        if project_ids:
+            projects = Project.objects.filter(id__in=project_ids)
+            instance.projects.set(projects)
+        
+        instance.save()
+        return instance
+        
+
 
 class CashTransactionCreateSerializer(serializers.Serializer):
     payment_type_ids = serializers.ListSerializer(child=serializers.UUIDField(), write_only=True)
diff --git a/core/apps/wherehouse/serializers/wherehouse.py b/core/apps/wherehouse/serializers/wherehouse.py
index 55c3e06..d4a7d83 100644
--- a/core/apps/wherehouse/serializers/wherehouse.py
+++ b/core/apps/wherehouse/serializers/wherehouse.py
@@ -14,6 +14,7 @@ class ProjectSerializer(serializers.ModelSerializer):
         fields = [
             'id', 'name', 'start_date', 'end_date', 'status'
         ]
+        ref_name = 'WareHouseProjectSerializer'
 
 
 class WhereHouseListSerializer(serializers.ModelSerializer):
@@ -63,10 +64,12 @@ class WhereHouseCreateSerializer(serializers.Serializer):
 
 
 class WhereHouseUpdateSerializer(serializers.ModelSerializer):
+    project_ids = serializers.ListField(child=serializers.UUIDField(required=False), required=False)
+
     class Meta:
         model = WhereHouse
         fields = [
-            'name', 'address', 'users'
+            'name', 'address', 'users', 'project_ids'
         ]
 
     def update(self, instance, validated_data):
@@ -77,5 +80,11 @@ class WhereHouseUpdateSerializer(serializers.ModelSerializer):
         if users is not None:
             instance.users.clear()
             instance.users.set(users)
+
+        project_ids = validated_data.pop('project_ids', [])
+        if project_ids:
+            projects = Project.objects.filter(id__in=project_ids)
+            instance.projects.set(projects)
+        
         instance.save()
         return instance