diff --git a/CHANGELOG.md b/CHANGELOG.md
index addc08b..2a0a91e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@ The versioning scheme is compliant with the [PEP 440] specification.
 
 [PEP 440]: https://peps.python.org/pep-0440/#public-version-identifiers
 
-## Unreleased
+## 2.2.0 (2023-04-24)
 
 - Dropped support for Python 3.6 and added support for Python 3.11.
 - Fixed location of type-checking marker file.
diff --git a/src/epiweeks/__init__.py b/src/epiweeks/__init__.py
index c190cbe..83d36bc 100644
--- a/src/epiweeks/__init__.py
+++ b/src/epiweeks/__init__.py
@@ -4,7 +4,7 @@
 https://github.com/dralshehri/epiweeks
 """
 
-__version__ = "2.1.4"
+__version__ = "2.2.0"
 
 from datetime import date, timedelta
 from typing import Iterator, Tuple