diff --git a/README.md b/README.md
index a0e7dbf8..a56c32db 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,8 @@ On Arch Linux, executing the following command should suffice:
 On OS X, you can use [Homebrew](http://brew.sh) to install the dependencies:
 
     $ brew install python3 gawk gnu-sed gmp mpfr libmpc isl zlib expat
+    $ brew tap discoteq/discoteq
+    $ brew install flock
 
 To build the glibc (Linux) on OS X, you will need to build within a case-sensitive file
 system.  The simplest approach is to create and mount a new disk image with