diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e22456b..1f821595 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## Unreleased
+
+## 15.2.1
+
+- Allow earlier versions of platformdirs ([#769](https://github.com/mozilla/glean_parser/pull/769))
+
 ## 15.2.0
 
 - New Metric Type: `labeled_quantity` ([bug 1925346](https://bugzilla.mozilla.org/show_bug.cgi?id=1925346))