diff --git a/README.md b/README.md
index 4f778b79e..3b93670fa 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,7 @@ A small tap for the [Homebrew project](http://mxcl.github.com/homebrew/) to inst
 ```bash
 $ brew update
 $ brew install gfortran
+$ brew tap homebrew/homebrew-versions
 $ brew tap staticfloat/julia
 $ brew install julia
 ```