'listen' is a dependancy of bootsnap

Gemfile

@@ -4,6 +4,8 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 ruby '2.6.3'
 
 gem 'bootsnap', '>= 1.4.1', require: false
+gem 'listen', '>= 3.0.5', '< 3.2' # requirement of bootsnap
+
 gem 'haml'
 gem 'jbuilder', '~> 2.5'
 gem 'pg'
@@ -42,7 +44,7 @@ end
 group :development do
   # Access an interactive console on exception pages or by calling 'console' anywhere in the code.
   gem 'web-console', '>= 3.3.0'
-  gem 'listen', '>= 3.0.5', '< 3.2'
+
   # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
   gem 'spring'
   gem 'spring-watcher-listen', '~> 2.0.0'