sass es necesario para compilar los assets

Gemfile

@@ -25,6 +25,11 @@ gem 'rails', '~> 6'
 gem 'puma'
 # See https://github.com/rails/execjs#readme for more supported runtimes
 # gem 'therubyracer', platforms: :ruby
+# Use SCSS for stylesheets
+gem 'sassc-rails'
+# Use Uglifier as compressor for JavaScript assets
+gem 'uglifier', '>= 1.3.0'
+gem 'bootstrap', '~> 4'
 
 # Turbolinks makes navigating your web application faster. Read more:
 # https://github.com/turbolinks/turbolinks
@@ -93,11 +98,6 @@ group :production do
 end
 
 group :development, :test do
-  # Use SCSS for stylesheets
-  gem 'sassc-rails'
-  # Use Uglifier as compressor for JavaScript assets
-  gem 'uglifier', '>= 1.3.0'
-  gem 'bootstrap', '~> 4'
   gem 'derailed_benchmarks'
   gem 'pry'
   # Adds support for Capybara system testing and selenium driver