diff --git a/CHANGELOG.md b/CHANGELOG.md
index 63bd0e5..95778cb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
-## [Unreleased]
+## [3.1.21] - 2026-11
 
 ### Fixed — names left unmasked
 - A full name before a rank that is followed by more words was not masked
diff --git a/data_masking.py b/data_masking.py
index dcd5b2f..6aeb820 100644
--- a/data_masking.py
+++ b/data_masking.py
@@ -31,7 +31,7 @@
 # Re-exports from masking package for backward compatibility
 # ============================================================================
 
-__version__ = "3.1.20"
+__version__ = "3.1.21"
 
 from datamasking.masking.constants import (
     __version__, __author__, __contact__, __phone__, __license__, __year__,
diff --git a/datamasking/_version.py b/datamasking/_version.py
index 2c0b46b..a252969 100644
--- a/datamasking/_version.py
+++ b/datamasking/_version.py
@@ -9,4 +9,4 @@
 (і не тягнучи faker під час збірки).
 """
 
-__version__ = "3.1.20"
+__version__ = "3.1.21"