diff --git a/README.md b/README.md
index 9589e523b..7e855016d 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ The source code is published under GPLv3 with OpenSSL exception, the license is
 ## Supported systems
 
 * Windows XP - Windows 10 (**not** RT)
-* Mac OS X 10.8 - Mac OS X 10.11
+* Mac OS X 10.8 - Mac OS X 10.15
 * Mac OS X 10.6 - Mac OS X 10.7 (separate build)
 * Ubuntu 12.04 - Ubuntu 19.04
 * Fedora 22 - Fedora 30