diff --git a/ep_postmaster.gemspec b/ep_postmaster.gemspec
index fb4e7e0..06a37d9 100644
--- a/ep_postmaster.gemspec
+++ b/ep_postmaster.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |s|
   s.files = Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.rdoc"]
   s.test_files = Dir["test/**/*"]
 
-  s.add_dependency "rails", ">= 4.2.1", "< 8.1"
+  s.add_dependency "rails", ">= 4.2.1", "< 8.2"
 
   s.add_development_dependency "sqlite3"
   s.add_development_dependency "rr"
diff --git a/test/dummy/config/environments/development.rb b/test/dummy/config/environments/development.rb
index b2e39eb..f6e70b4 100644
--- a/test/dummy/config/environments/development.rb
+++ b/test/dummy/config/environments/development.rb
@@ -22,11 +22,6 @@
   # Raise an error on page load if there are pending migrations
   config.active_record.migration_error = :page_load
 
-  # Debug mode disables concatenation and preprocessing of assets.
-  # This option may cause significant delays in view rendering with a large
-  # number of complex assets.
-  config.assets.debug = true
-
   config.action_mailer.delivery_method = :letter_opener
 
   # Raises error for missing translations
diff --git a/test/dummy/config/environments/production.rb b/test/dummy/config/environments/production.rb
index b690b1c..dc33932 100644
--- a/test/dummy/config/environments/production.rb
+++ b/test/dummy/config/environments/production.rb
@@ -22,19 +22,6 @@
   # Disable Rails's static asset server (Apache or nginx will already do this).
   config.serve_static_assets = false
 
-  # Compress JavaScripts and CSS.
-  config.assets.js_compressor = :uglifier
-  # config.assets.css_compressor = :sass
-
-  # Do not fallback to assets pipeline if a precompiled asset is missed.
-  config.assets.compile = false
-
-  # Generate digests for assets URLs.
-  config.assets.digest = true
-
-  # Version of your assets, change this if you want to expire all your assets.
-  config.assets.version = '1.0'
-
   # Specifies the header that your server uses for sending files.
   # config.action_dispatch.x_sendfile_header = "X-Sendfile" # for apache
   # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx