diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2a1bcebe..32df7ef5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
-## [4.0.0]
+## [4.0.0] - 2021-11-22
 
 Replaced [Test Explorer](https://marketplace.visualstudio.com/items?itemName=hbenl.vscode-test-explorer) with native API.