update README

nojimage · nojimage · commit b9d732c221b7 · 2022-10-28T22:05:13.000+09:00
diff --git a/README.md b/README.md
@@ -19,7 +19,7 @@ Cochrane, this library has been improved and made more complete by Nick Pope.
 
 ## Requirements ##
 
-- PHP 5.3 or higher
+- PHP 7.4 or higher
 - ext-mbstring
 - ext-intl
 
