Update README.md

Author: marioradu05

README.md

@@ -4,7 +4,7 @@ DotKernel component used to create services through [Laminas Service Manager](ht
 
 This package can clean up your code, by getting rid of all the factories you write, sometimes just to inject a dependency or two.
 
-**Requires PHP version >= 7.1**
+**Requires PHP version >= 7.4**
 
 ## Installation