diff --git a/README.md b/README.md
index a157ca6a..3e589d3c 100644
--- a/README.md
+++ b/README.md
@@ -157,7 +157,7 @@ month to offset the cost of an Apple Developer account to sign and notarize the
 
 ## System requirements
 
-- macOS 10.14 High Sierra or higher or Linux
+- macOS 10.13 High Sierra or higher or Linux
 - Python 3.6 or higher
 - For the system tray icon on Linux:
   - [gnome-shell-extension-appindicator](https://github.com/ubuntu/gnome-shell-extension-appindicator)