diff --git a/MacInstallation.md b/MacInstallation.md
index c2b9d80d..1e999b30 100644
--- a/MacInstallation.md
+++ b/MacInstallation.md
@@ -6,7 +6,7 @@ install homebrew
 
     rvm install 1.9.3 --with-gcc=clang
 
-    rvm use 1.9.3
+    rvm use 2.1.3
 
     gem install lunchy