diff --git a/CHANGELOG.md b/CHANGELOG.md
index 23388d6..23317ba 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,19 +6,11 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 
-## [Unreleased]
-
-### Added
-
-### Changed
-
-### Deprecated
-
-### Removed
+## 4.0.3 - 2021-09-25
 
 ### Fixed
 
-### Security
+* Switch back to `^8.0` in the PHP version requirement.
 
 
 ## 4.0.2 - 2021-09-24
diff --git a/composer.json b/composer.json
index 261b95d..3a14cc5 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
     "homepage": "https://github.com/ramsey/uuid",
     "license": "MIT",
     "require": {
-        "php": "^7.2 || ~8.0.0",
+        "php": "^7.2 || ^8.0",
         "ext-json": "*",
         "brick/math": "^0.8",
         "ramsey/collection": "^1.0",