diff --git a/README.md b/README.md
index 6ed21ad2a..192eaf649 100644
--- a/README.md
+++ b/README.md
@@ -100,7 +100,8 @@ Both `GitHub-hosted` and `self-hosted` runners are supported by `setup-php` on t
 
 On all supported OS/Platforms the following PHP versions can be set up as per the runner.
 
-- PHP 5.3 to PHP 8.4 on GitHub-hosted runners.
+- PHP 5.3 to PHP 8.4 on GitHub-hosted runners, except for macOS ARM64 runners (macos-14).
+- PHP 5.6 to PHP 8.4 on GitHub-hosted macOS ARM64 runners (macos-14).
 - PHP 5.6 to PHP 8.4 on self-hosted runners.
 
 | PHP Version | Stability | Release Support       | Runner Support                 |