diff --git a/.ruby-version b/.ruby-version
index 2bf1c1c..2714f53 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.3.1
+2.6.4
diff --git a/.travis.yml b/.travis.yml
index bdf321a..304c64c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,24 +1,28 @@
 language: ruby
 
+dist: xenial
+services:
+  - xvfb
+
 rvm:
-  - 2.2.5
+  - 2.6.4
 
 env:
+  - RAILS_VERSION=6.0.0
   - RAILS_VERSION=5.2.0
-  - RAILS_VERSION=4.2.0
-  - RAILS_VERSION=3.2.22
+
+addons:
+  apt:
+    packages:
+      - libqtwebkit-dev
+      - libqtwebkit4
 
 cache:
   directories:
-    - /home/travis/.rvm/gems/ruby-2.2.5
+    - /home/travis/.rvm/gems/ruby-2.6.4
 
 install: ./ci/build.sh
 
-before_script:
-  - export DISPLAY=:99.0
-  - sh -e /etc/init.d/xvfb start
-  - sleep 3
-
 script: ./ci/test.sh
 
 jobs:
diff --git a/Gemfile b/Gemfile
index bbd3d73..c9d5c4e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,11 +9,16 @@ gem 'rails', "#{rails_version}"
 case rails_version.split('.').first
 when '3'
   gem 'strong_parameters'
-when '4', '5'
+when '4', '5', '6'
   gem 'responders'
 end
 
-gem 'sqlite3'
+case rails_version.split('.').first
+when '3', '4', '5'
+  gem 'sqlite3', '~> 1.3.6'
+when  '6'
+  gem 'sqlite3', '~> 1.4.1'
+end
 
 gem 'rswag-api', path: './rswag-api'
 gem 'rswag-ui', path: './rswag-ui'
diff --git a/rswag-api/rswag-api.gemspec b/rswag-api/rswag-api.gemspec
index 299172d..3a14bb2 100644
--- a/rswag-api/rswag-api.gemspec
+++ b/rswag-api/rswag-api.gemspec
@@ -13,5 +13,5 @@ Gem::Specification.new do |s|
 
   s.files = Dir["{lib}/**/*"] + ["MIT-LICENSE", "Rakefile"]
 
-  s.add_dependency 'railties', '>= 3.1', '< 6.0'
+  s.add_dependency 'railties', '>= 3.1', '< 6.1'
 end
diff --git a/rswag-specs/rswag-specs.gemspec b/rswag-specs/rswag-specs.gemspec
index 0e4686e..e3ddaf3 100644
--- a/rswag-specs/rswag-specs.gemspec
+++ b/rswag-specs/rswag-specs.gemspec
@@ -13,7 +13,7 @@ Gem::Specification.new do |s|
 
   s.files = Dir["{lib}/**/*"] + ["MIT-LICENSE", "Rakefile" ]
 
-  s.add_dependency 'activesupport', '>= 3.1', '< 6.0'
-  s.add_dependency 'railties', '>= 3.1', '< 6.0'
+  s.add_dependency 'activesupport', '>= 3.1', '< 6.1'
+  s.add_dependency 'railties', '>= 3.1', '< 6.1'
   s.add_dependency 'json-schema', '~> 2.2'
 end
diff --git a/rswag-ui/rswag-ui.gemspec b/rswag-ui/rswag-ui.gemspec
index 5b53548..1584470 100644
--- a/rswag-ui/rswag-ui.gemspec
+++ b/rswag-ui/rswag-ui.gemspec
@@ -13,6 +13,6 @@ Gem::Specification.new do |s|
 
   s.files = Dir.glob("{lib,node_modules}/**/*") + ["MIT-LICENSE", "Rakefile" ]
 
-  s.add_dependency 'actionpack', '>=3.1', '< 6.0'
-  s.add_dependency 'railties', '>= 3.1', '< 6.0'
+  s.add_dependency 'actionpack', '>=3.1', '< 6.1'
+  s.add_dependency 'railties', '>= 3.1', '< 6.1'
 end