diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 2b4d322..591732a 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,3 +1,11 @@
+v5.3.3 (2024-02-26)
+===================
+
+- Documentation improvements.
+
+- Update CI environment.
+
+
 v5.3.2 (2023-10-24)
 ===================
 
diff --git a/src/cachetools/__init__.py b/src/cachetools/__init__.py
index 61c12be..341c1c7 100644
--- a/src/cachetools/__init__.py
+++ b/src/cachetools/__init__.py
@@ -13,7 +13,7 @@
     "cachedmethod",
 )
 
-__version__ = "5.3.2"
+__version__ = "5.3.3"
 
 import collections
 import collections.abc