From d85859d75b4bc93a15329acce363a9887e6c6e43 Mon Sep 17 00:00:00 2001
From: GO Sueyoshi <sue445@users.noreply.github.com>
Date: Thu, 20 Dec 2018 00:11:34 +0900
Subject: [PATCH] Stop `gem update --system`

rubygems v3+ requires MRI 2.3+
https://rubygems.org/gems/rubygems-update/versions/3.0.0

So build is failed on MRI < 2.3
---
 .travis.yml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 2dec86c..8447200 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,6 @@ rvm:
 bundler_args: "--jobs=2"
 cache: bundler
 before_install:
-  - gem update --system --no-document
   - gem install bundler --no-document
 before_script:
   - curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter