diff --git a/docs/Installation.md b/docs/Installation.md
index f186b546e1..84f858f268 100644
--- a/docs/Installation.md
+++ b/docs/Installation.md
@@ -11,7 +11,7 @@ it does it too. And you have to confirm everything it will do before it starts.
 
 ## Requirements
 * An Intel CPU <sup>[1](#1)</sup>
-* OS X 10.11 or higher <sup>[2](#2)</sup>
+* macOS 10.12 or higher <sup>[2](#2)</sup>
 * Command Line Tools (CLT) for Xcode: `xcode-select --install`,
   [developer.apple.com/downloads](https://developer.apple.com/downloads) or
   [Xcode](https://itunes.apple.com/us/app/xcode/id497799835) <sup>[3](#3)</sup>
@@ -51,7 +51,7 @@ you can assume you will have trouble if you don’t conform. Also, you can find
 PowerPC and Tiger branches from other users in the fork network. See
 [Interesting Taps and Forks](Interesting-Taps-and-Forks.md).
 
-<a name="2"><sup>2</sup></a> 10.11 or higher is recommended. 10.5–10.10 are
+<a name="2"><sup>2</sup></a> 10.12 or higher is recommended. 10.5–10.11 are
 supported on a best-effort basis. For 10.4 see
 [Tigerbrew](https://github.com/mistydemeo/tigerbrew).