From 9cfdabaf3ca626685a3c6ff96f2b9306ee1412c2 Mon Sep 17 00:00:00 2001
From: kennytm <kennytm@gmail.com>
Date: Sun, 5 Nov 2017 23:09:29 +0800
Subject: [PATCH] Force `gem update --system` before deployment.

Try to prevent #44159.
---
 .travis.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.travis.yml b/.travis.yml
index db34f1404481..a59364e40de1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -286,6 +286,7 @@ before_deploy:
           rm -rf obj/build/dist/doc &&
           cp -r obj/build/dist/* deploy/$TRAVIS_COMMIT;
       fi
+  - travis_retry gem update --system
 
 deploy:
   - provider: s3