diff --git a/.travis.yml b/.travis.yml
index 5d457da..e6c1d69 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,8 +2,5 @@ sudo: false
 language: ruby
 cache: bundler
 rvm:
-  - 2.5
   - 2.6
-before_install:
-  - gem update --system
-  - gem install bundler
+before_install: gem install bundler -v 2.1