diff --git a/app/controllers/alchemy/admin/passwords_controller.rb b/app/controllers/alchemy/admin/passwords_controller.rb
index 3cc7028..5792046 100644
--- a/app/controllers/alchemy/admin/passwords_controller.rb
+++ b/app/controllers/alchemy/admin/passwords_controller.rb
@@ -7,9 +7,9 @@ class PasswordsController < ::Devise::PasswordsController
         before_action { enforce_ssl if ssl_required? && !request.ssl? }
       end
 
-      helper 'Alchemy::Admin::Base'
+      helper "Alchemy::Admin::Base"
 
-      layout 'alchemy/admin'
+      layout "alchemy/admin"
 
       private
 
@@ -18,7 +18,7 @@ def new_session_path(resource_name)
         alchemy.admin_login_path
       end
 
-      def admin_edit_password_url(resource, options={})
+      def admin_edit_password_url(_resource, options = {})
         alchemy.admin_edit_password_url(options)
       end
 
@@ -29,7 +29,6 @@ def after_resetting_password_path_for(resource)
           alchemy.root_path
         end
       end
-
     end
   end
 end
diff --git a/app/controllers/alchemy/admin/user_sessions_controller.rb b/app/controllers/alchemy/admin/user_sessions_controller.rb
index e0569d6..03fb9d2 100644
--- a/app/controllers/alchemy/admin/user_sessions_controller.rb
+++ b/app/controllers/alchemy/admin/user_sessions_controller.rb
@@ -1,4 +1,6 @@
-require_dependency 'alchemy/version'
+# frozen_string_literal: true
+
+require_dependency "alchemy/version"
 
 module Alchemy
   module Admin
@@ -8,15 +10,15 @@ class UserSessionsController < ::Devise::SessionsController
       protect_from_forgery prepend: true
 
       if Alchemy.gem_version <= Gem::Version.new("4.9")
-        before_action except: 'destroy' do
+        before_action except: "destroy" do
           enforce_ssl if ssl_required? && !request.ssl?
         end
       end
       before_action :check_user_count, :only => :new
 
-      helper 'Alchemy::Admin::Base'
+      helper "Alchemy::Admin::Base"
 
-      layout 'alchemy/admin'
+      layout "alchemy/admin"
 
       def create
         authenticate_user!
@@ -26,10 +28,10 @@ def create
             redirect_path = admin_dashboard_path
           else
             # We have to strip double slashes from beginning of path, because of strange rails/rack bug.
-            redirect_path = session[:redirect_path].gsub(/\A\/{2,}/, '/')
+            redirect_path = session[:redirect_path].gsub(/\A\/{2,}/, "/")
           end
           redirect_to redirect_path,
-            notice: t(:signed_in, scope: 'devise.sessions')
+            notice: t(:signed_in, scope: "devise.sessions")
         else
           super
         end
diff --git a/spec/controllers/admin/user_sessions_controller_spec.rb b/spec/controllers/admin/user_sessions_controller_spec.rb
index dafa56c..72bd7c3 100644
--- a/spec/controllers/admin/user_sessions_controller_spec.rb
+++ b/spec/controllers/admin/user_sessions_controller_spec.rb
@@ -1,4 +1,6 @@
-require 'rails_helper'
+# frozen_string_literal: true
+
+require "rails_helper"
 
 describe Alchemy::Admin::UserSessionsController do
   routes { Alchemy::Engine.routes }
@@ -7,23 +9,23 @@
     @request.env["devise.mapping"] = Devise.mappings[:user]
   end
 
-  context 'without users present' do
-    describe '#new' do
+  context "without users present" do
+    describe "#new" do
       it "redirects to signup form" do
         get :new
         is_expected.to redirect_to(admin_signup_path)
       end
 
       if Alchemy.gem_version <= Gem::Version.new("4.9")
-        context 'with ssl enforced' do
+        context "with ssl enforced" do
           before do
             allow(controller).to receive(:ssl_required?).and_return(true)
           end
 
-          it 'redirects to https' do
+          it "redirects to https" do
             get :new
             is_expected.to redirect_to(
-              admin_login_url(protocol: 'https', host: "test.host")
+              admin_login_url(protocol: "https", host: "test.host"),
             )
           end
         end
@@ -31,34 +33,34 @@
     end
   end
 
-  context 'with users present' do
+  context "with users present" do
     let(:user) { create(:alchemy_admin_user) }
 
-    describe '#create' do
-      context 'with valid user' do
-        let(:screen_size) {'1200x800'}
-        let(:user_params) { {login: user.login, password: 's3cr3t'} }
+    describe "#create" do
+      context "with valid user" do
+        let(:screen_size) { "1200x800" }
+        let(:user_params) { { login: user.login, password: "s3cr3t" } }
 
         before { user }
 
-        context 'without redirect path in session' do
+        context "without redirect path in session" do
           it "redirects to dashboard" do
-            post :create, params: {user: user_params}
+            post :create, params: { user: user_params }
             expect(response).to redirect_to(admin_dashboard_path)
           end
         end
 
-        context 'with redirect path in session' do
+        context "with redirect path in session" do
           it "redirects to these params" do
             session[:redirect_path] = admin_users_path
-            post :create, params: {user: user_params}
+            post :create, params: { user: user_params }
             expect(response).to redirect_to(admin_users_path)
           end
         end
 
-        context 'without valid params' do
+        context "without valid params" do
           it "renders login form" do
-            post :create, params: {user: {login: ''}}
+            post :create, params: { user: { login: "" } }
             is_expected.to render_template(:new)
           end
         end
@@ -68,9 +70,8 @@
     describe "#destroy" do
       before do
         allow(controller).to receive(:store_user_request_time)
-        allow(controller)
-          .to receive(:all_signed_out?)
-          .and_return(false)
+        allow(controller).to receive(:all_signed_out?)
+                               .and_return(false)
         authorize_user(user)
       end
 
@@ -79,10 +80,10 @@
         delete :destroy
       end
 
-      context 'comming from admin area' do
+      context "comming from admin area" do
         before do
           allow_any_instance_of(ActionController::TestRequest).to receive(:referer) do
-            '/admin_users'
+            "/admin_users"
           end
         end
 
@@ -92,7 +93,7 @@
         end
       end
 
-      context 'no referer present' do
+      context "no referer present" do
         before do
           allow_any_instance_of(ActionController::TestRequest).to receive(:referer) do
             nil
@@ -105,16 +106,16 @@
         end
       end
 
-      context 'referer not from admin area' do
+      context "referer not from admin area" do
         before do
           allow_any_instance_of(ActionController::TestRequest).to receive(:referer) do
-            '/imprint'
+            "/imprint"
           end
         end
 
         it "redirects to root" do
           delete :destroy
-          is_expected.to redirect_to('/imprint')
+          is_expected.to redirect_to("/imprint")
         end
       end
     end