diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7882d6c..a57f005 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,8 +14,6 @@ jobs:
       matrix:
         gemfile:
           - Gemfile
-          - Gemfile.5.2
-          - Gemfile.6.0
           - Gemfile.6.1
     env:
       BUNDLE_GEMFILE: ${{ matrix.gemfile }}
@@ -24,7 +22,7 @@ jobs:
       - name: Set up Ruby ${{ matrix.ruby-version }}
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 2.7
+          ruby-version: 3.0
       - name: Install dependencies
         run: bundle install
       - name: Run tests
diff --git a/.github/workflows/gem-push.yml b/.github/workflows/gem-push.yml
index 44ea83e..b09cfd1 100644
--- a/.github/workflows/gem-push.yml
+++ b/.github/workflows/gem-push.yml
@@ -13,10 +13,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
-    - name: Set up Ruby 2.7
+    - name: Set up Ruby 3.0
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 2.7
+        ruby-version: 3.0
 
     - name: Publish to RubyGems
       env:
diff --git a/.rspec b/.rspec
index 4f8a7dd..83e16f8 100644
--- a/.rspec
+++ b/.rspec
@@ -1,3 +1,2 @@
 --color
---warning
 --require spec_helper
diff --git a/Gemfile b/Gemfile
index 6aad51b..d8f73d7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,6 @@
 source 'https://rubygems.org'
 
 gem "activerecord", ">=7"
+gem "sqlite3", "~> 1.4"
 # Specify your gem's dependencies in jit_preloader.gemspec
 gemspec
diff --git a/lib/jit_preloader.rb b/lib/jit_preloader.rb
index 637201c..5301378 100644
--- a/lib/jit_preloader.rb
+++ b/lib/jit_preloader.rb
@@ -22,7 +22,6 @@
 require 'jit_preloader/preloader'
 
 module JitPreloader
-  Warning[:deprecated] = true
   def self.globally_enabled=(value)
     @enabled = value
   end
diff --git a/lib/jit_preloader/preloader.rb b/lib/jit_preloader/preloader.rb
index e9b8035..d8c9c5d 100644
--- a/lib/jit_preloader/preloader.rb
+++ b/lib/jit_preloader/preloader.rb
@@ -3,10 +3,6 @@ class Preloader < ActiveRecord::Associations::Preloader
 
     attr_accessor :records
 
-    def foo(**kwargs)
-      kwargs
-    end
-
     if Gem::Version.new(ActiveRecord::VERSION::STRING) >= Gem::Version.new("7.0.0")
       def self.attach(records)
         new(records: records.dup, associations: nil).tap do |loader|
diff --git a/spec/lib/jit_preloader/preloader_spec.rb b/spec/lib/jit_preloader/preloader_spec.rb
index 8b2ce55..69f7038 100644
--- a/spec/lib/jit_preloader/preloader_spec.rb
+++ b/spec/lib/jit_preloader/preloader_spec.rb
@@ -49,11 +49,6 @@
     ->(event, data){ source_map[data[:source]] << data[:association] }
   end
 
-
-  it "should warn about keyword arguments" do
-    expect(described_class.new(records: nil, associations: nil).foo({a: 1})).to eq({a: 1})
-  end
-
   context "for single table inheritance" do
     context "when preloading an aggregate for a child model" do
       let!(:contact_book) { ContactBook.create(name: "The Yellow Pages") }