fix: Validation condition
diff --git a/erpnext/education/doctype/student/student.py b/erpnext/education/doctype/student/student.py
index 81fa7f7..6b545d9 100644
--- a/erpnext/education/doctype/student/student.py
+++ b/erpnext/education/doctype/student/student.py
@@ -23,7 +23,7 @@
 
 	def validate_dates(self):
 		for sibling in self.siblings:
-			if sibling.date_of_birth and getdate(sibling.date_of_birth) >= getdate():
+			if sibling.date_of_birth and getdate(sibling.date_of_birth) > getdate():
 				frappe.throw(_("Row {0}:Sibling Date of Birth cannot be greater than today.").format(sibling.idx))
 				
 		if self.date_of_birth and getdate(self.date_of_birth) >= getdate(today()):