diff --git a/sinatra-contrib/sinatra-contrib.gemspec b/sinatra-contrib/sinatra-contrib.gemspec
index b37dd648..bb57eacc 100644
--- a/sinatra-contrib/sinatra-contrib.gemspec
+++ b/sinatra-contrib/sinatra-contrib.gemspec
@@ -150,68 +150,6 @@ Gem::Specification.new do |s|
     "lib/sinatra/required_params.rb",
     "lib/sinatra/test_helpers.rb",
     "sinatra-contrib.gemspec",
-    "spec/capture_spec.rb",
-    "spec/config_file/key_value.yml",
-    "spec/config_file/key_value.yml.erb",
-    "spec/config_file/key_value_override.yml",
-    "spec/config_file/missing_env.yml",
-    "spec/config_file/with_envs.yml",
-    "spec/config_file/with_nested_envs.yml",
-    "spec/config_file_spec.rb",
-    "spec/content_for/different_key.erb",
-    "spec/content_for/different_key.erubis",
-    "spec/content_for/different_key.haml",
-    "spec/content_for/different_key.slim",
-    "spec/content_for/footer.erb",
-    "spec/content_for/footer.erubis",
-    "spec/content_for/footer.haml",
-    "spec/content_for/footer.slim",
-    "spec/content_for/layout.erb",
-    "spec/content_for/layout.erubis",
-    "spec/content_for/layout.haml",
-    "spec/content_for/layout.slim",
-    "spec/content_for/multiple_blocks.erb",
-    "spec/content_for/multiple_blocks.erubis",
-    "spec/content_for/multiple_blocks.haml",
-    "spec/content_for/multiple_blocks.slim",
-    "spec/content_for/multiple_yields.erb",
-    "spec/content_for/multiple_yields.erubis",
-    "spec/content_for/multiple_yields.haml",
-    "spec/content_for/multiple_yields.slim",
-    "spec/content_for/passes_values.erb",
-    "spec/content_for/passes_values.erubis",
-    "spec/content_for/passes_values.haml",
-    "spec/content_for/passes_values.slim",
-    "spec/content_for/same_key.erb",
-    "spec/content_for/same_key.erubis",
-    "spec/content_for/same_key.haml",
-    "spec/content_for/same_key.slim",
-    "spec/content_for/takes_values.erb",
-    "spec/content_for/takes_values.erubis",
-    "spec/content_for/takes_values.haml",
-    "spec/content_for/takes_values.slim",
-    "spec/content_for_spec.rb",
-    "spec/cookies_spec.rb",
-    "spec/custom_logger_spec.rb",
-    "spec/extension_spec.rb",
-    "spec/json_spec.rb",
-    "spec/link_header_spec.rb",
-    "spec/multi_route_spec.rb",
-    "spec/namespace/foo.erb",
-    "spec/namespace/nested/foo.erb",
-    "spec/namespace_spec.rb",
-    "spec/okjson.rb",
-    "spec/reloader/app.rb.erb",
-    "spec/reloader_spec.rb",
-    "spec/respond_with/bar.erb",
-    "spec/respond_with/bar.json.erb",
-    "spec/respond_with/baz.yajl",
-    "spec/respond_with/foo.html.erb",
-    "spec/respond_with/not_html.sass",
-    "spec/respond_with_spec.rb",
-    "spec/spec_helper.rb",
-    "spec/streaming_spec.rb",
-    "spec/required_params_spec.rb",
   ]
 
   s.required_ruby_version = '>= 2.2.0'