diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2a1d89ceb48816b9fba33df24af66d4570bb3c61..cb83a61923661ad2438b9a4b8fece48120704385 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ Note that since we don't clearly distinguish between a public and private interf
 
 ## [Unreleased]
 
+## [v3.20.0] - 2022-10-16
+
 - [Breaking] Rename the ``model-index`` color theme to ``trajectory-index``
 - Add a new ``model-index`` color theme that uniquely colors each loaded model
 - Add the new ``model-index`` and ``structure-index`` color themes as an option for the carbon color in the ``element-symbol`` and ``ilustrative`` color themes