diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e32630..72d6139 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,11 @@
 # Changelog
 
 
+## v0.21.1 (2022-08-02)
+
+* Update python requirements.
+
+
 ## v0.20.1 (2022-08-02)
 
 * Update python requirements.
diff --git a/bufferer/__init__.py b/bufferer/__init__.py
index 6a726d8..76f2458 100644
--- a/bufferer/__init__.py
+++ b/bufferer/__init__.py
@@ -1 +1 @@
-__version__ = "0.21.0"
+__version__ = "0.21.1"