diff --git a/.compile_binaries b/.compile_binaries
index 2585c14..44ddc58 100755
--- a/.compile_binaries
+++ b/.compile_binaries
@@ -56,7 +56,8 @@ build_windows() {
 }
 
 build_osx() {
-  # Darwin x86_64 static executable
+  # Darwin x86_64 executable
+  brew update
   brew install cabal-install pandoc gnu-tar
   sudo ln -s /usr/local/bin/gsha512sum /usr/local/bin/sha512sum
   sudo ln -s /usr/local/bin/gtar /usr/local/bin/tar