diff --git a/README.md b/README.md
index c887fda..65e0a77 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Auto install Squid 3 proxy on following linux OS.
 
 * Ubuntu 24.04, 22.04, 20.04, 18.04 
 * Debian 12, 11, 10, 9, 8
-* CentOS 8, 7
+* CentOS 8
 * CentOS Steam 9, 8
 * AlmaLinux 9, 8