diff --git a/Appraisals b/Appraisals
index aaadaf0..286a3ee 100644
--- a/Appraisals
+++ b/Appraisals
@@ -20,4 +20,9 @@ if RUBY_VERSION >= "2.2.0"
     gem 'rails', '~> 5.0.3'
     gem 'rails-controller-testing'
   end
+
+  appraise 'rails51' do
+    gem 'rails', '~> 5.1.1'
+    gem 'rails-controller-testing'
+  end
 end
diff --git a/gemfiles/rails51.gemfile b/gemfiles/rails51.gemfile
new file mode 100644
index 0000000..57c8b65
--- /dev/null
+++ b/gemfiles/rails51.gemfile
@@ -0,0 +1,16 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "uglifier"
+gem "sqlite3"
+gem "dotenv-rails"
+gem "minitest-spec-rails"
+gem "coveralls", :require => false
+gem "redcard"
+gem "mocha", :require => false
+gem "rails", "~> 5.1.1"
+gem "rails-controller-testing"
+
+gemspec :path => "../"
diff --git a/gemfiles/rails51.gemfile.lock b/gemfiles/rails51.gemfile.lock
new file mode 100644
index 0000000..8ac34ae
--- /dev/null
+++ b/gemfiles/rails51.gemfile.lock
@@ -0,0 +1,225 @@
+PATH
+  remote: ..
+  specs:
+    resque-web (0.0.11)
+      coffee-rails
+      font-awesome-sass
+      jquery-rails
+      resque
+      sass-rails
+      twitter-bootstrap-rails
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    actioncable (5.1.1)
+      actionpack (= 5.1.1)
+      nio4r (~> 2.0)
+      websocket-driver (~> 0.6.1)
+    actionmailer (5.1.1)
+      actionpack (= 5.1.1)
+      actionview (= 5.1.1)
+      activejob (= 5.1.1)
+      mail (~> 2.5, >= 2.5.4)
+      rails-dom-testing (~> 2.0)
+    actionpack (5.1.1)
+      actionview (= 5.1.1)
+      activesupport (= 5.1.1)
+      rack (~> 2.0)
+      rack-test (~> 0.6.3)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    actionview (5.1.1)
+      activesupport (= 5.1.1)
+      builder (~> 3.1)
+      erubi (~> 1.4)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    activejob (5.1.1)
+      activesupport (= 5.1.1)
+      globalid (>= 0.3.6)
+    activemodel (5.1.1)
+      activesupport (= 5.1.1)
+    activerecord (5.1.1)
+      activemodel (= 5.1.1)
+      activesupport (= 5.1.1)
+      arel (~> 8.0)
+    activesupport (5.1.1)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (~> 0.7)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
+    appraisal (2.2.0)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    arel (8.0.0)
+    builder (3.2.3)
+    coffee-rails (4.2.2)
+      coffee-script (>= 2.2.0)
+      railties (>= 4.0.0)
+    coffee-script (2.4.1)
+      coffee-script-source
+      execjs
+    coffee-script-source (1.12.2)
+    commonjs (0.2.7)
+    concurrent-ruby (1.0.5)
+    coveralls (0.8.21)
+      json (>= 1.8, < 3)
+      simplecov (~> 0.14.1)
+      term-ansicolor (~> 1.3)
+      thor (~> 0.19.4)
+      tins (~> 1.6)
+    docile (1.1.5)
+    dotenv (2.2.1)
+    dotenv-rails (2.2.1)
+      dotenv (= 2.2.1)
+      railties (>= 3.2, < 5.2)
+    erubi (1.6.0)
+    execjs (2.7.0)
+    font-awesome-sass (4.7.0)
+      sass (>= 3.2)
+    globalid (0.4.0)
+      activesupport (>= 4.2.0)
+    i18n (0.8.1)
+    jquery-rails (4.3.1)
+      rails-dom-testing (>= 1, < 3)
+      railties (>= 4.2.0)
+      thor (>= 0.14, < 2.0)
+    json (2.1.0)
+    less (2.6.0)
+      commonjs (~> 0.2.7)
+    less-rails (2.8.0)
+      actionpack (>= 4.0)
+      less (~> 2.6.0)
+      sprockets (> 2, < 4)
+      tilt
+    loofah (2.0.3)
+      nokogiri (>= 1.5.9)
+    mail (2.6.5)
+      mime-types (>= 1.16, < 4)
+    metaclass (0.0.4)
+    method_source (0.8.2)
+    mime-types (3.1)
+      mime-types-data (~> 3.2015)
+    mime-types-data (3.2016.0521)
+    mini_portile2 (2.1.0)
+    minitest (5.10.2)
+    minitest-spec-rails (5.4.0)
+      minitest (~> 5.0)
+      rails (>= 4.1)
+    mocha (1.2.1)
+      metaclass (~> 0.0.1)
+    mono_logger (1.1.0)
+    multi_json (1.12.1)
+    mustermann (1.0.0)
+    nio4r (2.0.0)
+    nokogiri (1.7.2)
+      mini_portile2 (~> 2.1.0)
+    rack (2.0.3)
+    rack-protection (2.0.0)
+      rack
+    rack-test (0.6.3)
+      rack (>= 1.0)
+    rails (5.1.1)
+      actioncable (= 5.1.1)
+      actionmailer (= 5.1.1)
+      actionpack (= 5.1.1)
+      actionview (= 5.1.1)
+      activejob (= 5.1.1)
+      activemodel (= 5.1.1)
+      activerecord (= 5.1.1)
+      activesupport (= 5.1.1)
+      bundler (>= 1.3.0, < 2.0)
+      railties (= 5.1.1)
+      sprockets-rails (>= 2.0.0)
+    rails-controller-testing (1.0.2)
+      actionpack (~> 5.x, >= 5.0.1)
+      actionview (~> 5.x, >= 5.0.1)
+      activesupport (~> 5.x)
+    rails-dom-testing (2.0.3)
+      activesupport (>= 4.2.0)
+      nokogiri (>= 1.6)
+    rails-html-sanitizer (1.0.3)
+      loofah (~> 2.0)
+    railties (5.1.1)
+      actionpack (= 5.1.1)
+      activesupport (= 5.1.1)
+      method_source
+      rake (>= 0.8.7)
+      thor (>= 0.18.1, < 2.0)
+    rake (12.0.0)
+    redcard (1.1.0)
+    redis (3.3.3)
+    redis-namespace (1.5.3)
+      redis (~> 3.0, >= 3.0.4)
+    resque (1.27.4)
+      mono_logger (~> 1.0)
+      multi_json (~> 1.0)
+      redis-namespace (~> 1.3)
+      sinatra (>= 0.9.2)
+      vegas (~> 0.1.2)
+    sass (3.4.24)
+    sass-rails (5.0.6)
+      railties (>= 4.0.0, < 6)
+      sass (~> 3.1)
+      sprockets (>= 2.8, < 4.0)
+      sprockets-rails (>= 2.0, < 4.0)
+      tilt (>= 1.1, < 3)
+    simplecov (0.14.1)
+      docile (~> 1.1.0)
+      json (>= 1.8, < 3)
+      simplecov-html (~> 0.10.0)
+    simplecov-html (0.10.1)
+    sinatra (2.0.0)
+      mustermann (~> 1.0)
+      rack (~> 2.0)
+      rack-protection (= 2.0.0)
+      tilt (~> 2.0)
+    sprockets (3.7.1)
+      concurrent-ruby (~> 1.0)
+      rack (> 1, < 3)
+    sprockets-rails (3.2.0)
+      actionpack (>= 4.0)
+      activesupport (>= 4.0)
+      sprockets (>= 3.0.0)
+    sqlite3 (1.3.13)
+    term-ansicolor (1.6.0)
+      tins (~> 1.0)
+    thor (0.19.4)
+    thread_safe (0.3.6)
+    tilt (2.0.7)
+    tins (1.14.0)
+    twitter-bootstrap-rails (4.0.0)
+      actionpack (~> 5.0, >= 5.0.1)
+      execjs (~> 2.7)
+      less-rails (~> 2.8, >= 2.8.0)
+      railties (~> 5.0, >= 5.0.1)
+    tzinfo (1.2.3)
+      thread_safe (~> 0.1)
+    uglifier (3.2.0)
+      execjs (>= 0.3.0, < 3)
+    vegas (0.1.11)
+      rack (>= 1.0.0)
+    websocket-driver (0.6.5)
+      websocket-extensions (>= 0.1.0)
+    websocket-extensions (0.1.2)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  appraisal
+  coveralls
+  dotenv-rails
+  minitest-spec-rails
+  mocha
+  rails (~> 5.1.1)
+  rails-controller-testing
+  redcard
+  resque-web!
+  sqlite3
+  uglifier
+
+BUNDLED WITH
+   1.15.0
diff --git a/test/functional/failures_controller_test.rb b/test/functional/failures_controller_test.rb
index ee255c2..bcb4639 100644
--- a/test/functional/failures_controller_test.rb
+++ b/test/functional/failures_controller_test.rb
@@ -26,7 +26,7 @@ class FailuresControllerTest < ActionController::TestCase
     describe "DELETE /failures/destroy_all" do
       it "deletes all failures" do
         Resque::Failure.expects(:clear).with('failed')
-        visit(:destroy_all, nil, :method => :delete)
+        visit(:destroy_all, {}, :method => :delete)
         assert_redirected_to failures_path
       end
     end
@@ -51,7 +51,7 @@ class FailuresControllerTest < ActionController::TestCase
         Resque::Failure.stubs(:requeue_and_remove).returns(true)
         Resque::Failure.expects(:requeue_and_remove).with(0)
         Resque::Failure.expects(:requeue_and_remove).with(1)
-        visit(:retry_all, nil, :method => :put)
+        visit(:retry_all, {}, :method => :put)
         assert_redirected_to failures_path
       end
       it "retries all failures should also work case of pre 2.0 Resque" do
@@ -61,7 +61,7 @@ class FailuresControllerTest < ActionController::TestCase
         Resque::Failure.expects(:remove).with(0)
         Resque::Failure.expects(:requeue).with(1)
         Resque::Failure.expects(:remove).with(1)
-        visit(:retry_all, nil, :method => :put)
+        visit(:retry_all, {}, :method => :put)
         assert_redirected_to failures_path
       end
       it "retries all failures using requeue_queue if queue specified" do