diff --git a/.github/workflows/specs.yml b/.github/workflows/specs.yml
index b047275..448965c 100644
--- a/.github/workflows/specs.yml
+++ b/.github/workflows/specs.yml
@@ -7,7 +7,7 @@ on:
     branches: [ master ]
 
 jobs:
-  ruby2-test:
+  test:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
diff --git a/README.md b/README.md
index f1b0e7e..436c7a7 100644
--- a/README.md
+++ b/README.md
@@ -195,6 +195,8 @@ We provide a Puma plugin if you want to run the Lepus's supervisor together with
 plugin :lepus
 ```
 
+**Note**: The Puma plugin is only available if you are using Puma 6.x or higher.
+
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
diff --git a/lib/lepus/rails.rb b/lib/lepus/rails.rb
index 182444e..a369a69 100644
--- a/lib/lepus/rails.rb
+++ b/lib/lepus/rails.rb
@@ -3,10 +3,5 @@
 require "rails/railtie"
 require "active_support/log_subscriber"
 
-module Lepus
-  module Rails
-  end
-end
-
 require_relative "rails/log_subscriber"
 require_relative "rails/railtie"