diff --git a/tools/mac_setup.sh b/tools/mac_setup.sh
index 062de6aabf788b..bfbdb0cc667cc6 100755
--- a/tools/mac_setup.sh
+++ b/tools/mac_setup.sh
@@ -5,6 +5,9 @@ DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
 ROOT="$(cd $DIR/../ && pwd)"
 ARCH=$(uname -m)
 
+# homebrew update is slow
+export HOMEBREW_NO_AUTO_UPDATE=1
+
 if [[ $SHELL == "/bin/zsh" ]]; then
   RC_FILE="$HOME/.zshrc"
 elif [[ $SHELL == "/bin/bash" ]]; then