diff --git a/vms/administrator/models.py b/vms/administrator/models.py
index 3107168..a93db25 100644
--- a/vms/administrator/models.py
+++ b/vms/administrator/models.py
@@ -21,7 +21,7 @@ class Administrator(models.Model):
     address = models.CharField(
         max_length=75,
         validators=[
-            RegexValidator(r'^[(A-Z)|(a-z)|(0-9)|(\s)|(\-)|(\.)|(,)|(\:)]+$', ),
+            RegexValidator(r'^[A-Za-z0-9\s\-.,_/:]+$', ),
         ],
     )
     city = models.ForeignKey(City, null=True, blank=True, on_delete=models.CASCADE)