diff --git a/CHANGELOG.md b/CHANGELOG.md
index 088c8550..9429b04e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 
 ### Changed
 
+- Block installations on unsupported higher PHP versions (#691)
 - Improve performance of Value::parseValue with many delimiters by refactoring to remove array_search() (#413)
 - Add visibility to all class/interface constants (#469)
 
diff --git a/composer.json b/composer.json
index b61d7646..28414b53 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
         }
     ],
     "require": {
-        "php": ">=7.2.0",
+        "php": "^7.2.0 || ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0",
         "ext-iconv": "*"
     },
     "require-dev": {