diff --git a/Guardfile b/Guardfile
index 7b6ade9..53503b5 100644
--- a/Guardfile
+++ b/Guardfile
@@ -3,4 +3,3 @@ guard :rspec, cmd: "bundle exec rspec" do
   watch(%r{^lib/(.+)\.rb$})     { |m| "spec/lib/#{m[1]}_spec.rb" }
   watch("spec/spec_helper.rb")  { "spec" }
 end
-
diff --git a/Rakefile b/Rakefile
index c6daf51..7efc873 100644
--- a/Rakefile
+++ b/Rakefile
@@ -9,4 +9,3 @@ CLOBBER.include "pkg"
 require "bundler/gem_helper"
 Bundler::GemHelper.install_tasks name: :database_cleaner
 Bundler::GemHelper.install_tasks name: :"database_cleaner-core"
-
diff --git a/bin/setup b/bin/setup
index 268b1b4..f1f2dd2 100755
--- a/bin/setup
+++ b/bin/setup
@@ -5,4 +5,3 @@ set -vx
 
 bundle check || bundle install
 cp spec/support/sample.config.yml spec/support/config.yml
-
diff --git a/examples/features/example_multiple_db.feature b/examples/features/example_multiple_db.feature
index d9bbb66..971511b 100644
--- a/examples/features/example_multiple_db.feature
+++ b/examples/features/example_multiple_db.feature
@@ -20,4 +20,3 @@ Feature: example
     When I create a widget in another db
     Then I should see 0 widget in one db
      And I should see 1 widget in another db
-
diff --git a/features/cleaning_multiple_dbs.feature b/features/cleaning_multiple_dbs.feature
index debbb0a..d637a08 100644
--- a/features/cleaning_multiple_dbs.feature
+++ b/features/cleaning_multiple_dbs.feature
@@ -38,4 +38,3 @@ Feature: multiple database cleaning
     | DataMapper   | transaction   |
     | ActiveRecord | transaction   |
     | Sequel       | transaction   |
-
diff --git a/lib/database_cleaner.rb b/lib/database_cleaner.rb
index 484e99c..ad7a57b 100644
--- a/lib/database_cleaner.rb
+++ b/lib/database_cleaner.rb
@@ -1,2 +1 @@
 require "database_cleaner/active_record"
-
diff --git a/lib/database_cleaner/core.rb b/lib/database_cleaner/core.rb
index 925fc9e..03e12ee 100644
--- a/lib/database_cleaner/core.rb
+++ b/lib/database_cleaner/core.rb
@@ -27,4 +27,3 @@ module DatabaseCleaner
     end
   end
 end
-
diff --git a/lib/database_cleaner/deprecation.rb b/lib/database_cleaner/deprecation.rb
index 8053311..10f98d2 100644
--- a/lib/database_cleaner/deprecation.rb
+++ b/lib/database_cleaner/deprecation.rb
@@ -18,4 +18,3 @@ module DatabaseCleaner
     end
   end
 end
-
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index bbdceaa..ddcb2a9 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -12,4 +12,3 @@ RSpec.configure do |config|
 
   config.disable_monkey_patching!
 end
-
diff --git a/spec/support/active_record_helper.rb b/spec/support/active_record_helper.rb
index 5041e97..3a59249 100644
--- a/spec/support/active_record_helper.rb
+++ b/spec/support/active_record_helper.rb
@@ -37,4 +37,3 @@ class ActiveRecordHelper < DatabaseCleaner::Spec::DatabaseHelper
     ActiveRecord::ConnectionAdapters::Mysql2Adapter::NATIVE_DATABASE_TYPES[:primary_key] = primary_key_sql
   end
 end
-
diff --git a/spec/support/data_mapper_helper.rb b/spec/support/data_mapper_helper.rb
index c0d94fc..5df570e 100644
--- a/spec/support/data_mapper_helper.rb
+++ b/spec/support/data_mapper_helper.rb
@@ -33,4 +33,3 @@ class DataMapperHelper < DatabaseCleaner::Spec::DatabaseHelper
     DataMapper.setup(:default, config)
   end
 end
-
diff --git a/spec/support/example.database.yml b/spec/support/example.database.yml
index bddb4dc..e4574a9 100644
--- a/spec/support/example.database.yml
+++ b/spec/support/example.database.yml
@@ -1,3 +1,2 @@
 my_db:
   database: <%= "ONE".downcase %>
-
diff --git a/spec/support/sample.config.yml b/spec/support/sample.config.yml
index 7cd47a3..bcbeb1d 100644
--- a/spec/support/sample.config.yml
+++ b/spec/support/sample.config.yml
@@ -22,4 +22,3 @@ sqlite3:
   pool: 5
   timeout: 5000
   encoding: utf8
-