diff --git a/osinaweb/billing/__pycache__/models.cpython-310.pyc b/osinaweb/billing/__pycache__/models.cpython-310.pyc
index 777f410d..9143c46d 100644
Binary files a/osinaweb/billing/__pycache__/models.cpython-310.pyc and b/osinaweb/billing/__pycache__/models.cpython-310.pyc differ
diff --git a/osinaweb/billing/models.py b/osinaweb/billing/models.py
index f995c524..a40f3c6b 100644
--- a/osinaweb/billing/models.py
+++ b/osinaweb/billing/models.py
@@ -17,8 +17,8 @@ class Item(models.Model):
     )
     title = models.CharField(max_length=200)
     description = models.TextField(blank=True)
-    project = models.ForeignKey(Project, blank=True, on_delete=models.CASCADE)
-    type = models.ForeignKey(ProjectType, on_delete=models.CASCADE, blank=True)
+    project = models.ForeignKey(Project, null=True, blank=True, on_delete=models.CASCADE)
+    type = models.ForeignKey(ProjectType, on_delete=models.CASCADE, null=True, blank=True)
     amount = models.FloatField(null=True)
     recurring = models.BooleanField(default=False)
     active = models.BooleanField(default=True, null=True)