diff --git a/python/phonenumbers/__init__.py b/python/phonenumbers/__init__.py
index 6d82a807..d9a66590 100644
--- a/python/phonenumbers/__init__.py
+++ b/python/phonenumbers/__init__.py
@@ -146,7 +146,7 @@
 
 # Version number is taken from the upstream libphonenumber version
 # together with an indication of the version of the Python-specific code.
-__version__ = "8.13.27"
+__version__ = "8.13.28"
 
 __all__ = ['PhoneNumber', 'CountryCodeSource', 'FrozenPhoneNumber',
            'REGION_CODE_FOR_NON_GEO_ENTITY', 'NumberFormat', 'PhoneNumberDesc', 'PhoneMetadata',