diff --git a/.rubocop.yml b/.rubocop.yml
index 73e92be..c5e1e28 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,7 +1,7 @@
 inherit_from: .rubocop_todo.yml
 AllCops:
   DisplayCopNames: true
-  TargetRubyVersion: 1.9
+  TargetRubyVersion: 2.1
   Exclude:
     - "gemfiles/**/*"
     - "vendor/**/*"
@@ -34,7 +34,7 @@ Metrics/PerceivedComplexity:
 Style/StructInheritance:
   Enabled: false
 
-Style/AlignParameters:
+Layout/AlignParameters:
   EnforcedStyle: with_fixed_indentation
 
 Style/StringLiterals:
@@ -43,7 +43,7 @@ Style/StringLiterals:
 Style/StringLiteralsInInterpolation:
   EnforcedStyle: double_quotes
 
-Style/ClosingParenthesisIndentation:
+Layout/ClosingParenthesisIndentation:
   Enabled: false
 
 Style/OneLineConditional:
@@ -58,7 +58,7 @@ Style/Not:
 Documentation:
   Enabled: false # TODO: Enable again once we have more docs
 
-Style/CaseIndentation:
+Layout/CaseIndentation:
   EnforcedStyle: case
   SupportedStyles:
     - case
@@ -70,13 +70,13 @@ Style/PercentLiteralDelimiters:
     '%w': "[]"
     '%W': "[]"
 
-Style/AccessModifierIndentation:
+Layout/AccessModifierIndentation:
   EnforcedStyle: outdent
 
 Style/SignalException:
   Enabled: false
 
-Style/IndentationWidth:
+Layout/IndentationWidth:
   Enabled: false
 
 Style/TrivialAccessors:
@@ -97,7 +97,7 @@ Style/SpecialGlobalVars:
 Style/TrivialAccessors:
   Enabled: false
 
-Style/IndentHash:
+Layout/IndentHash:
   Enabled: false
 
 Style/DoubleNegation:
diff --git a/.travis.yml b/.travis.yml
index aeeed81..cde3d77 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,13 +6,12 @@ before_install:
 
 matrix:
   include:
-    - rvm: 2.4.1
+    - rvm: 2.4.2
       script: bundle exec rake rubocop # ONLY lint once, first
     - rvm: 2.1
-    - rvm: 2.2.7
-    - rvm: 2.3.4
-    - rvm: 2.4.1
-    - rvm: jruby-1.7.26
+    - rvm: 2.2.8
+    - rvm: 2.3.5
+    - rvm: 2.4.2
       env:
         - JRUBY_OPTS="--debug"
     - rvm: jruby-9.1.8.0
diff --git a/pundit.gemspec b/pundit.gemspec
index 66adb1e..9b582d7 100644
--- a/pundit.gemspec
+++ b/pundit.gemspec
@@ -1,5 +1,3 @@
-# -*- encoding: utf-8 -*-
-
 lib = File.expand_path("../lib", __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require "pundit/version"
diff --git a/spec/pundit_spec.rb b/spec/pundit_spec.rb
index ad63d90..081a62c 100644
--- a/spec/pundit_spec.rb
+++ b/spec/pundit_spec.rb
@@ -121,10 +121,10 @@ describe Pundit do
     end
 
     it "returns an instantiated policy given an array of symbols" do
-      policy = Pundit.policy(user, [:project, :criteria])
+      policy = Pundit.policy(user, %i[project criteria])
       expect(policy.class).to eq Project::CriteriaPolicy
       expect(policy.user).to eq user
-      expect(policy.criteria).to eq [:project, :criteria]
+      expect(policy.criteria).to eq %i[project criteria]
     end
 
     it "returns an instantiated policy given an array of a symbol and plain model instance" do
@@ -156,7 +156,7 @@ describe Pundit do
     end
 
     it "returns correct policy class for an array of a multi-word symbols" do
-      policy = Pundit.policy(user, [:project_one_two_three, :criteria_four_five_six])
+      policy = Pundit.policy(user, %i[project_one_two_three criteria_four_five_six])
       expect(policy.class).to eq ProjectOneTwoThree::CriteriaFourFiveSixPolicy
     end
 
@@ -269,10 +269,10 @@ describe Pundit do
     end
 
     it "returns an instantiated policy given an array of symbols" do
-      policy = Pundit.policy!(user, [:project, :criteria])
+      policy = Pundit.policy!(user, %i[project criteria])
       expect(policy.class).to eq Project::CriteriaPolicy
       expect(policy.user).to eq user
-      expect(policy.criteria).to eq [:project, :criteria]
+      expect(policy.criteria).to eq %i[project criteria]
     end
 
     it "throws an exception if the given policy can't be found" do
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index c784c2f..b21cc2a 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -46,7 +46,7 @@ class PostPolicy < Struct.new(:user, :post)
 
   def permitted_attributes
     if post.user == user
-      [:title, :votes]
+      %i[title votes]
     else
       [:votes]
     end