diff --git a/.travis.yml b/.travis.yml
index c5cbe0c..406c407 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,19 +1,14 @@
 language: ruby
 cache: bundler
-
 sudo: false
-
+rvm:
+  - 2.2.5
+  - 2.3.1
 branches:
   only:
     - master
-
 before_install:
   - bundle --version
   - gem --version
-rvm:
-  - 2.1.10
-  - 2.2.5
-  - 2.3.1
-
 script:
   - bundle exec rake
diff --git a/Gemfile b/Gemfile
index c2e8c6e..13ce910 100755
--- a/Gemfile
+++ b/Gemfile
@@ -5,5 +5,4 @@ gemspec
 group :development do
   gem "rdoc"
   gem "bundler"
-  gem "rack", "< 2.0"
 end
diff --git a/mixlib-log.gemspec b/mixlib-log.gemspec
index bd17316..15808bb 100644
--- a/mixlib-log.gemspec
+++ b/mixlib-log.gemspec
@@ -13,6 +13,7 @@ Gem::Specification.new do |gem|
   gem.has_rdoc = true
   gem.extra_rdoc_files = ["README.md", "LICENSE", "NOTICE"]
   gem.files = Dir["lib/**/*"] + Dir["spec/**/*"] + ["Gemfile", "Rakefile", ".gemtest", "mixlib-log.gemspec"]
+  gem.required_ruby_version = ">= 2.2"
   gem.add_development_dependency "rake"
   gem.add_development_dependency "rspec", "~> 3.4"
   gem.add_development_dependency "chefstyle", "= 0.4.0"