diff --git a/Gemfile b/Gemfile
index 8d1d891..b9b608d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,9 +8,4 @@ if ENV['PAGEFLOW_DEPENDENCIES'] == 'experimental'
     gem 'pageflow'
     gem 'pageflow-support'
   end
-else
-  group :development, :test do
-    # Help Bundler resolve dependencies
-    gem 'rails', '~> 5.2.0'
-  end
 end
diff --git a/pageflow-vr.gemspec b/pageflow-vr.gemspec
index 14b4858..5aa9816 100644
--- a/pageflow-vr.gemspec
+++ b/pageflow-vr.gemspec
@@ -17,18 +17,13 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = '>= 2.1'
 
-  spec.add_dependency 'pageflow', ['>= 12.0', '< 17']
+  spec.add_dependency 'pageflow', ['>= 12.0', '< 18']
   spec.add_dependency 'pageflow-public-i18n', '~> 1.10'
 
   spec.add_development_dependency 'bundler', ['>= 1.12', '< 3']
-  spec.add_development_dependency 'pageflow-support', ['>= 14', '< 17']
+  spec.add_development_dependency 'pageflow-support', ['>= 14', '< 18']
   spec.add_development_dependency 'rake', '~> 12.0'
-
-  if ENV['PAGEFLOW_DEPENDENCIES'] == 'experimental'
-    spec.add_development_dependency 'rspec-rails', '~> 6.0'
-  else
-    spec.add_development_dependency 'rspec-rails', '~> 3.0'
-  end
+  spec.add_development_dependency 'rspec-rails', '~> 6.0'
 
   spec.add_development_dependency 'semmy', '~> 1.0'
 end