diff --git a/docs/docs/changelog.md b/docs/docs/changelog.md
index 4182e5c..86c79a9 100644
--- a/docs/docs/changelog.md
+++ b/docs/docs/changelog.md
@@ -15,7 +15,7 @@ Types of changes:
 - `Fixed` for any bug fixes.
 - `Security` in case of vulnerabilities.
 
-## [Unreleased] - {yyyy-mm-dd}
+## [0.21.0] - 2021-04-22
 ### Added
 - Adds testing for Python 3.10
 - `read_tcx()` now supports a metadata=True kwarg that will return device data.
diff --git a/pyproject.toml b/pyproject.toml
index 53152fe..aa08576 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "sweat"
-version = "0.20.3"
+version = "0.21.0"
 description = "Workout analysis"
 license = "MIT"
 authors = ["Aart Goossens <aart@goossens.me>"]