diff --git a/rakelib/examples.rake b/rakelib/examples.rake
index 0ad09064d5..ce23f67ed3 100644
--- a/rakelib/examples.rake
+++ b/rakelib/examples.rake
@@ -34,6 +34,7 @@ namespace :examples do # rubocop:disable Metrics/BlockLength
       sh_in_dir(examples_dir, "rails new #{example_type.name} #{example_type.rails_options}")
       sh_in_dir(example_type.dir, "touch .gitignore")
       copy_generator_webpacker_yml_to(example_type.dir)
+      sh_in_dir(example_type.dir, "bundle add webpacker --version 6.0.0.rc.6")
       sh_in_dir(example_type.dir, "rake webpacker:install")
       sh_in_dir(example_type.dir, "bundle binstubs --path=#{example_type.dir}/bin webpacker")
       append_to_gemfile(example_type.gemfile, example_type.required_gems)
diff --git a/react_on_rails.gemspec b/react_on_rails.gemspec
index fcd76deb2b..fb281e9af2 100644
--- a/react_on_rails.gemspec
+++ b/react_on_rails.gemspec
@@ -30,7 +30,7 @@ Gem::Specification.new do |s|
   s.add_dependency "execjs", "~> 2.5"
   s.add_dependency "rails", ">= 3.2"
   s.add_dependency "rainbow", "~> 3.0"
-  s.add_dependency "webpacker", ">= 4.0"
+  s.add_dependency "webpacker", "6.0.0.rc.6"
 
   s.add_development_dependency "bundler", "~> 2"
   s.add_development_dependency "gem-release"