diff --git a/ChangeLog b/ChangeLog
index ef3df8c..28da08d 100755
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,6 @@
+2022-05-24 Tetsumune KISO <t2mune@gmail.com>
+	* Release - version 2.2.0 released.
+
 2022-04-23 Tetsumune KISO <t2mune@gmail.com>
 	* Update - some key names.
 
diff --git a/mrtparse/__init__.py b/mrtparse/__init__.py
index 883d60c..46f5ea3 100644
--- a/mrtparse/__init__.py
+++ b/mrtparse/__init__.py
@@ -34,7 +34,7 @@
 except AttributeError:
     pass
 
-__version__ = '2.2.0.dev0'
+__version__ = '2.2.0'
 
 # Magic Number
 GZIP_MAGIC = b'\x1f\x8b'