diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 [Русская версия](./README_ru.md)
 ## Overview
 This plugin allows you to compare and synchronize interfaces between devices and device types in NetBox. It can be useful for finding and correcting inconsistencies between interfaces.  
-Tested with NetBox versions 2.10, 2.11, 3.X, 4.0
+Tested with NetBox version 4.0
 ## Installation
 If your NetBox installation uses virtualenv, activate it like this:
 ```