diff --git a/.travis.yml b/.travis.yml
index 38000543..d787b8bd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,34 +1,46 @@
 sudo: required
 dist: trusty
 
-script:
-  - bundle exec rake test_app
-  - bundle exec rake spec
-
-addons:
-  chrome: stable
+language: ruby
 
 env:
-  - DB=mysql
   - DB=postgres
+  - DB=mysql
 
-language: ruby
-
-rvm:
-  - 2.3.3
-  - 2.4.2
-  - 2.5.2
-
-matrix:
-    allow_failures:
-          - gemfile: gemfiles/spree_master.gemfile
+addons:
+  chrome: stable
+  postgresql: 9.4
 
 gemfile:
-  - gemfiles/spree_3_2.gemfile
   - gemfiles/spree_3_5.gemfile
   - gemfiles/spree_3_7.gemfile
+  - gemfiles/spree_4_0.gemfile
   - gemfiles/spree_master.gemfile
 
+script:
+  - bundle exec rake test_app
+  - bundle exec rake spec
+
+rvm:
+  - 2.5.1
+  - 2.4.4
+  - 2.3.8
+
+matrix:
+  allow_failures:
+    - gemfile: gemfiles/spree_master.gemfile
+  exclude:
+    - rvm: 2.3.8
+      gemfile: gemfiles/spree_4_0.gemfile
+    - rvm: 2.4.4
+      gemfile: gemfiles/spree_4_0.gemfile
+    - rvm: 2.3.8
+      gemfile: gemfiles/spree_master.gemfile
+    - rvm: 2.4.4
+      gemfile: gemfiles/spree_master.gemfile
+    - rvm: 2.5.1
+      gemfile: gemfiles/spree_3_5.gemfile
+
 before_install:
   - mysql -u root -e "GRANT ALL ON *.* TO 'travis'@'%';"
   - wget -N https://chromedriver.storage.googleapis.com/2.35/chromedriver_linux64.zip -P ~/
@@ -36,4 +48,4 @@ before_install:
   - rm ~/chromedriver_linux64.zip
   - sudo mv -f ~/chromedriver /usr/local/share/
   - sudo chmod +x /usr/local/share/chromedriver
-  - sudo ln -s /usr/local/share/chromedriver /usr/local/bin/chromedriver
+  - sudo ln -s /usr/local/share/chromedriver /usr/local/bin/chromedriver
\ No newline at end of file
diff --git a/Appraisals b/Appraisals
index 04489688..9077bc0a 100644
--- a/Appraisals
+++ b/Appraisals
@@ -11,6 +11,12 @@ end
 appraise 'spree-3-7' do
   gem 'spree', '~> 3.7.0'
   gem 'rails-controller-testing'
+  gem 'sass-rails'
+end
+
+appraise 'spree-4-0' do
+  gem 'spree', '~> 4.0.0.beta'
+  gem 'rails-controller-testing'
 end
 
 appraise 'spree-master' do
diff --git a/gemfiles/spree_3_7.gemfile b/gemfiles/spree_3_7.gemfile
index 9e347b33..1433e138 100644
--- a/gemfiles/spree_3_7.gemfile
+++ b/gemfiles/spree_3_7.gemfile
@@ -4,5 +4,6 @@ source "https://rubygems.org/"
 
 gem "rails-controller-testing"
 gem "spree", "~> 3.7.0"
+gem "sass-rails"
 
 gemspec path: "../"
diff --git a/gemfiles/spree_3_2.gemfile b/gemfiles/spree_4_0.gemfile
similarity index 81%
rename from gemfiles/spree_3_2.gemfile
rename to gemfiles/spree_4_0.gemfile
index d9bf3b7a..5bd42a1f 100644
--- a/gemfiles/spree_3_2.gemfile
+++ b/gemfiles/spree_4_0.gemfile
@@ -3,6 +3,6 @@
 source "https://rubygems.org/"
 
 gem "rails-controller-testing"
-gem "spree", "~> 3.2.0"
+gem "spree", "~> 4.0.0.beta"
 
 gemspec path: "../"
diff --git a/spec/controllers/static_content_controller_spec.rb b/spec/controllers/static_content_controller_spec.rb
index 1eb1a720..98e5324c 100644
--- a/spec/controllers/static_content_controller_spec.rb
+++ b/spec/controllers/static_content_controller_spec.rb
@@ -11,21 +11,21 @@
       page = create(:page, slug: '/', stores: [store])
       request.path = page.slug
       get :show, params: { path: page.slug }
-      expect(response).to be_success
+      expect(response.status).to eq(200)
     end
 
     it 'accepts path as string' do
       page = create(:page, slug: 'hello', stores: [store])
       request.path = page.slug
       get :show, params: { path: page.slug }
-      expect(response).to be_success
+      expect(response.status).to eq(200)
     end
 
     it 'accepts path as nested' do
       page = create(:page, slug: 'aa/bb/cc', stores: [store])
       request.path = page.slug
       get :show, params: { path: page.slug }
-      expect(response).to be_success
+      expect(response.status).to eq(200)
     end
 
     it 'respond with a 404 when no page exists' do
diff --git a/spree_static_content.gemspec b/spree_static_content.gemspec
index 3c0f7298..c7d9e1f6 100644
--- a/spree_static_content.gemspec
+++ b/spree_static_content.gemspec
@@ -24,12 +24,13 @@ Gem::Specification.new do |s|
 
   s.add_dependency 'spree_core', '>= 3.1.0', '< 5.0'
   s.add_dependency 'spree_extension'
+  s.add_dependency 'deface', '~> 1.5'
 
   s.add_development_dependency 'capybara'
   s.add_development_dependency 'factory_bot', '~> 4.7'
   s.add_development_dependency 'ffaker'
   s.add_development_dependency 'database_cleaner'
-  s.add_development_dependency 'rspec-rails'
+  s.add_development_dependency 'rspec-rails', '~> 4.0.0.beta2'
   s.add_development_dependency 'selenium-webdriver'
   s.add_development_dependency 'simplecov'
   s.add_development_dependency 'coffee-rails'
@@ -39,7 +40,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rubocop'
   s.add_development_dependency 'pg', '~> 0.18'
   s.add_development_dependency 'mysql2'
-  s.add_development_dependency 'sqlite3', '~> 1.3.6'
+  s.add_development_dependency 'sqlite3'
   s.add_development_dependency 'appraisal'
   s.add_development_dependency 'puma'
 end