diff --git a/Appraisals b/Appraisals
index d14caa7..3356f9a 100644
--- a/Appraisals
+++ b/Appraisals
@@ -1,13 +1,17 @@
-appraise 'rubocop-0.41' do
-  gem 'rubocop', '~> 0.41.0'
+appraise 'rubocop-1.0' do
+  gem 'rubocop', '~> 1.0.0'
 end
 
-appraise 'rubocop-0.42' do
-  gem 'rubocop', '~> 0.42.0'
+appraise 'rubocop-1.1' do
+  gem 'rubocop', '~> 1.1.0'
 end
 
-appraise 'rubocop-0.43' do
-  gem 'rubocop', '~> 0.43.0'
+appraise 'rubocop-1.2' do
+  gem 'rubocop', '~> 1.2.0'
+end
+
+appraise 'rubocop-1.3' do
+  gem 'rubocop', '~> 1.2.0'
 end
 
 appraise 'latest-rubocop' do
diff --git a/bin/appraisal b/bin/appraisal
new file mode 100755
index 0000000..0e7ba65
--- /dev/null
+++ b/bin/appraisal
@@ -0,0 +1,29 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+#
+# This file was generated by Bundler.
+#
+# The application 'appraisal' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
+  Pathname.new(__FILE__).realpath)
+
+bundle_binstub = File.expand_path("../bundle", __FILE__)
+
+if File.file?(bundle_binstub)
+  if File.read(bundle_binstub, 300) =~ /This file was generated by Bundler/
+    load(bundle_binstub)
+  else
+    abort("Your `bin/bundle` was not generated by Bundler, so this binstub cannot run.
+Replace `bin/bundle` by running `bundle binstubs bundler --force`, then run this command again.")
+  end
+end
+
+require "rubygems"
+require "bundler/setup"
+
+load Gem.bin_path("appraisal", "appraisal")
diff --git a/gemfiles/.bundle/config b/gemfiles/.bundle/config
index 9c61b5c..891c1ef 100644
--- a/gemfiles/.bundle/config
+++ b/gemfiles/.bundle/config
@@ -1,2 +1,3 @@
 ---
 BUNDLE_DISABLE_SHARED_GEMS: "true"
+BUNDLE_RETRY: "1"
diff --git a/gemfiles/latest_rubocop.gemfile b/gemfiles/latest_rubocop.gemfile
index b996387..02e3c70 100644
--- a/gemfiles/latest_rubocop.gemfile
+++ b/gemfiles/latest_rubocop.gemfile
@@ -4,4 +4,4 @@ source "https://rubygems.org"
 
 gem "rubocop"
 
-gemspec :path => "../"
+gemspec path: "../"
diff --git a/gemfiles/rubocop_0.41.gemfile b/gemfiles/rubocop_1.0.gemfile
similarity index 59%
rename from gemfiles/rubocop_0.41.gemfile
rename to gemfiles/rubocop_1.0.gemfile
index 53a3500..9329801 100644
--- a/gemfiles/rubocop_0.41.gemfile
+++ b/gemfiles/rubocop_1.0.gemfile
@@ -2,6 +2,6 @@
 
 source "https://rubygems.org"
 
-gem "rubocop", "~> 0.41.0"
+gem "rubocop", "~> 1.0.0"
 
-gemspec :path => "../"
+gemspec path: "../"
diff --git a/gemfiles/rubocop_0.42.gemfile b/gemfiles/rubocop_1.1.gemfile
similarity index 59%
rename from gemfiles/rubocop_0.42.gemfile
rename to gemfiles/rubocop_1.1.gemfile
index d3dec7d..dff68b2 100644
--- a/gemfiles/rubocop_0.42.gemfile
+++ b/gemfiles/rubocop_1.1.gemfile
@@ -2,6 +2,6 @@
 
 source "https://rubygems.org"
 
-gem "rubocop", "~> 0.42.0"
+gem "rubocop", "~> 1.1.0"
 
-gemspec :path => "../"
+gemspec path: "../"
diff --git a/gemfiles/rubocop_0.43.gemfile b/gemfiles/rubocop_1.2.gemfile
similarity index 59%
rename from gemfiles/rubocop_0.43.gemfile
rename to gemfiles/rubocop_1.2.gemfile
index 7f72ce4..094927a 100644
--- a/gemfiles/rubocop_0.43.gemfile
+++ b/gemfiles/rubocop_1.2.gemfile
@@ -2,6 +2,6 @@
 
 source "https://rubygems.org"
 
-gem "rubocop", "~> 0.43.0"
+gem "rubocop", "~> 1.2.0"
 
-gemspec :path => "../"
+gemspec path: "../"
diff --git a/gemfiles/rubocop_1.3.gemfile b/gemfiles/rubocop_1.3.gemfile
new file mode 100644
index 0000000..094927a
--- /dev/null
+++ b/gemfiles/rubocop_1.3.gemfile
@@ -0,0 +1,7 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "rubocop", "~> 1.2.0"
+
+gemspec path: "../"
diff --git a/lib/rubocop/cop/migrations/remove_index.rb b/lib/rubocop/cop/migrations/remove_index.rb
index 84d54d0..58443c0 100644
--- a/lib/rubocop/cop/migrations/remove_index.rb
+++ b/lib/rubocop/cop/migrations/remove_index.rb
@@ -19,7 +19,7 @@ def on_send(node)
             node.each_ancestor do |a|
               next unless a.def_type?
               if a.to_s =~ /def :up/ || a.to_s =~ /def :change/
-                add_offense(node, :selector, MSG)
+                add_offense(node, location: :selector, message: MSG)
               end
             end
           end
diff --git a/rubocop-migrations.gemspec b/rubocop-migrations.gemspec
index 21449cf..801d8d9 100644
--- a/rubocop-migrations.gemspec
+++ b/rubocop-migrations.gemspec
@@ -20,10 +20,10 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
-  spec.add_runtime_dependency 'rubocop', '~> 0.41'
+  spec.add_runtime_dependency 'rubocop', '~> 1.0'
 
-  spec.add_development_dependency 'bundler', '~> 1.11'
+  spec.add_development_dependency 'bundler', '~> 2.1.4'
   spec.add_development_dependency 'rake', '~> 10.0'
   spec.add_development_dependency 'rspec', '~> 3.5'
-  spec.add_development_dependency 'appraisal'
+  spec.add_development_dependency 'appraisal', '~> 2.3.0'
 end
diff --git a/spec/support/shared_examples.rb b/spec/support/shared_examples.rb
index 6f534c1..7f2fe42 100644
--- a/spec/support/shared_examples.rb
+++ b/spec/support/shared_examples.rb
@@ -21,12 +21,12 @@ module SharedExamples
   end
 
   def expect_no_offenses(cop, source)
-    inspect_source(cop, source)
+    inspect_source(source)
     expect(cop.offenses).to be_empty
   end
 
   def expect_reported_offenses(cop, source, expected_offenses)
-    inspect_source(cop, source)
+    inspect_source(source)
     expect(cop.offenses.size).to eq(expected_offenses.size)
     expected_offenses.zip(cop.offenses).each do |expected, actual|
       expect_offense(expected, actual)