diff --git a/.travis.yml b/.travis.yml
index ac98681..fa6dda7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ sudo: false
 language: ruby
 cache: bundler
 rvm:
-  - 2.6
+  - 2.7
 before_install:
   - gem update --system
   - gem install bundler
diff --git a/kokki.gemspec b/kokki.gemspec
index 64d216b..168d7d2 100644
--- a/kokki.gemspec
+++ b/kokki.gemspec
@@ -24,10 +24,10 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_development_dependency "bundler", "~> 2.0"
+  spec.add_development_dependency "bundler", "~> 2.1"
   spec.add_development_dependency "coveralls", "~> 0.8"
   spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "rspec", "~> 3.9"
-  spec.add_development_dependency "vcr", "~> 5.0"
-  spec.add_development_dependency "webmock", "~> 3.7"
+  spec.add_development_dependency "vcr", "~> 6.0"
+  spec.add_development_dependency "webmock", "~> 3.9"
 end