diff --git a/Podfile b/Podfile
index 54435704..aa6ebbd9 100644
--- a/Podfile
+++ b/Podfile
@@ -9,7 +9,7 @@ target 'Tests' do
 end
 
 post_install do |installer|
-  swift3_pods = %w(Stencil)
+  swift3_pods = %w[Stencil]
   installer.pods_project.targets.each do |target|
     target.build_configurations.each do |config|
       config.build_settings['SWIFT_VERSION'] = '3.2' if swift3_pods.include?(target.name)
diff --git a/Rakefile b/Rakefile
index c5d41b2a..c7eec2d3 100755
--- a/Rakefile
+++ b/Rakefile
@@ -2,7 +2,7 @@
 require 'English'
 
 unless defined?(Bundler)
-  puts 'Please use bundle exec to run the rake command' 
+  puts 'Please use bundle exec to run the rake command'
   exit 1
 end
 
diff --git a/rakelib/lint.rake b/rakelib/lint.rake
index 4d3dbe41..baf4b2cb 100644
--- a/rakelib/lint.rake
+++ b/rakelib/lint.rake
@@ -2,7 +2,7 @@
 # none
 
 namespace :lint do
-  SWIFTLINT = 'Scripts/SwiftLint.sh'
+  SWIFTLINT = 'Scripts/SwiftLint.sh'.freeze
 
   desc 'Lint the code'
   task :code do |task|