diff --git a/AIS/__init__.py b/AIS/__init__.py
index f6e1d49..912a28c 100644
--- a/AIS/__init__.py
+++ b/AIS/__init__.py
@@ -24,4 +24,4 @@
     'UnknownAISError'
 )
 
-__version__ = '2.2.0'
+__version__ = '2.2.1'
diff --git a/HISTORY.rst b/HISTORY.rst
index 4110a14..206033c 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -3,6 +3,11 @@
 Release History
 ---------------
 
+2.2.1 (2022-09-02)
+++++++++++++++++++
+
+- Gracefully handles empty batches
+
 2.2.0 (2022-07-14)
 ++++++++++++++++++