diff --git a/README.md b/README.md
index d504f35..dd4525c 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ https://serverok.in/squid
 Auto install Squid 3 proxy on following linux OS.
 
 * Ubuntu 14.04, 16.04, 18.04, 20.04, 22.04
-* Debian 8, 9, 10
+* Debian 8, 9, 10, 11
 * CentOS 7, 8