diff --git a/README.md b/README.md
index 923f4a3..741773f 100644
--- a/README.md
+++ b/README.md
@@ -7,8 +7,8 @@ Provides various compatibility functions required for PHP (temporary) migration.
 
 ## Supported Versions
 
-- Extension: PHP >= 8.0, 8.3 >= PHP
-- Library: PHP >= 7.4, 8.3 >= PHP
+- Extension: PHP >= 8.0, 8.4 >= PHP
+- Library: PHP >= 7.4, 8.4 >= PHP
 
 Library is introduced for migration to PHP 8.x with the same code base. If you do not need to work with the same code base, you can use only the Extension.