diff --git a/README.md b/README.md
index e75e0e86..e675fce5 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ was written correctly and much more.
 ## Supported Operating Systems
 
 - Linux (most distros)
-- macOS 10.9 and later
+- macOS 10.10 (Yosemite) and later
 - Microsoft Windows 7 and later
 
 Note that Etcher will run on any platform officially supported by
diff --git a/docs/USER-DOCUMENTATION.md b/docs/USER-DOCUMENTATION.md
index 61fad210..2285c795 100644
--- a/docs/USER-DOCUMENTATION.md
+++ b/docs/USER-DOCUMENTATION.md
@@ -206,7 +206,7 @@ Running in older macOS versions
 -------------------------------
 
 Etcher GUI is based on the [Electron][electron] framework, [which only supports
-macOS 10.9 and newer versions][electron-supported-platforms].
+macOS 10.10 (Yosemite) and newer versions][electron-supported-platforms].
 
 [balena.io]: https://balena.io
 [appimage]: http://appimage.org