From 5ec72932123d3def5a7ee082cd23b7ee071a457e Mon Sep 17 00:00:00 2001
From: Martin Edenhofer <me@edenhofer.de>
Date: Tue, 3 Apr 2018 01:29:19 +0200
Subject: [PATCH] Update gem to work on travis environment.

---
 .travis.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.travis.yml b/.travis.yml
index 5e36976ca..412e8a2d4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -45,6 +45,7 @@ language: ruby
 rvm:
   - 2.4.4
 before_install:
+  - gem update
   - git fetch --unshallow
   - if [ "${DB}" = "mysql" ]; then mysql -u root -e "CREATE USER 'some_user'@'localhost' IDENTIFIED BY 'some_pass';"; fi
   - if [ "${DB}" = "mysql" ]; then mysql -u root -e "GRANT ALL PRIVILEGES ON *.* TO 'some_user'@'localhost';"; fi