diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index bb76cd6f0d..d83222cba8 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -38,7 +38,7 @@ Changelog
  * Maintenance: Upgrade frontend tooling to use Node 20 (LB (Ben) Johnston)
 
 
-5.2.1 (xx.xx.xxxx) - IN DEVELOPMENT
+5.2.1 (16.11.2023)
 ~~~~~~~~~~~~~~~~~~
 
  * Fix: Add a fallback background for the editing preview iframe for sites without a background (Ian Price)
diff --git a/docs/releases/5.2.1.md b/docs/releases/5.2.1.md
index 9959ac94cb..3195050393 100644
--- a/docs/releases/5.2.1.md
+++ b/docs/releases/5.2.1.md
@@ -1,6 +1,6 @@
-# Wagtail 5.2.1 release notes - IN DEVELOPMENT
+# Wagtail 5.2.1 release notes
 
-_Unreleased_
+_November 16, 2023_
 
 ```{contents}
 ---