diff --git a/History.md b/History.md
index 4d7abc37205..1b2427d3b9a 100644
--- a/History.md
+++ b/History.md
@@ -1,4 +1,4 @@
-UNRELEASED
+4.21.3 / 2025-11-21
 ==========
 
   * deps: use tilde notation for dependencies
diff --git a/package.json b/package.json
index 75c520b80b8..d18a7683314 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "express",
   "description": "Fast, unopinionated, minimalist web framework",
-  "version": "4.21.2",
+  "version": "4.21.3",
   "author": "TJ Holowaychuk <tj@vision-media.ca>",
   "contributors": [
     "Aaron Heckmann <aaron.heckmann+github@gmail.com>",