diff --git a/apps/common/validators.py b/apps/common/validators.py
index c77a03581..a2e338406 100644
--- a/apps/common/validators.py
+++ b/apps/common/validators.py
@@ -10,6 +10,7 @@ from rest_framework.validators import (
     UniqueTogetherValidator, ValidationError
 )
 from rest_framework import serializers
+from phonenumbers.phonenumberutil import NumberParseException
 
 from common.utils.strings import no_special_chars
 
@@ -47,6 +48,11 @@ class PhoneValidator:
     message = _('The mobile phone number format is incorrect')
 
     def __call__(self, value):
-        phone = phonenumbers.parse(value)
-        if not phonenumbers.is_valid_number(phone):
+        try:
+            phone = phonenumbers.parse(value)
+            valid = phonenumbers.is_valid_number(phone)
+        except NumberParseException:
+            valid = False
+
+        if valid:
             raise serializers.ValidationError(self.message)
diff --git a/apps/users/serializers/user.py b/apps/users/serializers/user.py
index e21aab06b..aa997d27f 100644
--- a/apps/users/serializers/user.py
+++ b/apps/users/serializers/user.py
@@ -106,7 +106,7 @@ class UserSerializer(RolesSerializerMixin, CommonBulkSerializerMixin, serializer
         allow_null=True, max_length=1024,
     )
     phone = PhoneField(
-        validators=[PhoneValidator()], required=False, allow_null=True, label=_("Phone")
+        validators=[PhoneValidator()], required=False, allow_blank=True, allow_null=True, label=_("Phone")
     )
     custom_m2m_fields = {
         "system_roles": [BuiltinRole.system_user],