update travis setting

luluzhao · luluzhao · commit f930847a82ab · 2019-05-08T15:29:06.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -7,6 +7,10 @@ rvm:
 
 sudo: false
 
+before_install:
+  - gem update --system
+  - gem install bundler
+
 install:
   - bundle install
 
@@ -15,4 +19,4 @@ script:
 
 matrix:
   allow_failures:
-    - rvm: 2.6
+    - rvm: 2.6
