From 154f0c332818ec92387b7b57dafd0c54aef1d393 Mon Sep 17 00:00:00 2001
From: BinHong Lee <binhonglee@users.noreply.github.com>
Date: Sat, 21 Apr 2018 11:33:51 -0700
Subject: [PATCH] Update .travis.yml

---
 .travis.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 2e385e3..44dd38f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -26,12 +26,12 @@ matrix:
     - os: osx
       osx_image: xcode8
       env:
-        - MATRIX_EVAL="brew install gcc6 && CC=gcc-6 && CXX=g++-6"
+        - MATRIX_EVAL="brew update && brew install gcc6 && CC=gcc-6 && CXX=g++-6"
         
     - os: osx
       osx_image: xcode8
       env:
-        - MATRIX_EVAL="brew install gcc && CC=gcc-7 && CXX=g++-7"
+        - MATRIX_EVAL="brew update && brew install gcc && CC=gcc-7 && CXX=g++-7"
 
 before_install:
   - eval "${MATRIX_EVAL}"