diff --git a/.circleci/config.yml b/.circleci/config.yml
index d09efa2..5bec898 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -25,8 +25,8 @@ jobs:
 
       - restore_cache:
           keys:
-          - has_safe_dates-dependencies-v1-{{ checksum "has_safe_dates.gemspec" }}
-          - has_safe_dates-dependencies-v1-
+            - has_safe_dates-dependencies-v1-{{ checksum "has_safe_dates.gemspec" }}
+            - has_safe_dates-dependencies-v1-
 
       - run:
           name: Install dependencies
@@ -65,8 +65,8 @@ jobs:
 
       - restore_cache:
           keys:
-          - has_safe_dates-dependencies-v1-{{ checksum "has_safe_dates.gemspec" }}
-          - has_safe_dates-dependencies-v1-
+            - has_safe_dates-dependencies-v1-{{ checksum "has_safe_dates.gemspec" }}
+            - has_safe_dates-dependencies-v1-
 
       - run:
           name: Install dependencies
diff --git a/.rubocop.yml b/.rubocop.yml
new file mode 100644
index 0000000..8d3cbe8
--- /dev/null
+++ b/.rubocop.yml
@@ -0,0 +1,5 @@
+inherit_from:
+  - https://onehq.com/rubocop3_4.yml
+
+AllCops:
+  SuggestExtensions: false
\ No newline at end of file
diff --git a/.ruby-version b/.ruby-version
index 4a36342..f989260 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.0.0
+3.4.4
diff --git a/Gemfile b/Gemfile
index 5a96427..7425f42 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,17 @@
 # frozen_string_literal: true
 
-source "http://rubygems.org"
-
-gemspec
+source "https://rubygems.org"
 
+gem "base64"
+gem "benchmark"
+gem "bigdecimal"
 gem "byebug"
+gem "logger"
+gem "mutex_m"
+gem "ostruct"
+gem "rubocop",                      "~> 1.81"
+gem "rubocop-performance",          "~> 1.26"
+gem "rubocop-rails",                "~> 2.34"
+gem "sqlite3",                      "~> 1.4"
+
+gemspec
diff --git a/has_safe_dates.gemspec b/has_safe_dates.gemspec
index dce531a..d571d9d 100644
--- a/has_safe_dates.gemspec
+++ b/has_safe_dates.gemspec
@@ -7,48 +7,28 @@ require "has_safe_dates/version"
 
 # Describe your gem and declare its dependencies:
 Gem::Specification.new do |s|
-  s.name        = "has_safe_dates"
-  s.version     = HasSafeDates::VERSION
-  s.authors     = ["kylejginavan"]
-  s.date        = "2012-02-24"
-  s.description = "Uses Chronic to parse incoming dates and does not raise errors on invalid multi parameter settings"
-  s.email       = "kylejginavan@gmail.com"
+  s.name                  = "has_safe_dates"
+  s.version               = HasSafeDates::VERSION
+  s.authors               = ["kylejginavan"]
+  s.date                  = "2012-02-24"
+  s.description           = "Uses Chronic to parse incoming dates and does not raise errors on invalid multi parameter settings"
+  s.email                 = "kylejginavan@gmail.com"
+  s.required_ruby_version = ">= 3.4"
 
-  s.extra_rdoc_files = [
-    "MIT-LICENSE.txt",
-    "README.md"
-  ]
-  s.files = `git ls-files`.split("\n")
-  s.homepage = "http://github.com/kylejginavan/has_safe_dates"
-  s.require_paths = ["lib"]
-  s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
-  s.executables   = `git ls-files -- bin/*`.split("\n").map { |f| File.basename(f) }
-  s.summary = "Chronic based date setting for ActiveRecord models"
+  s.extra_rdoc_files      = ["MIT-LICENSE.txt", "README.md"]
+  s.files                 = `git ls-files`.split("\n")
+  s.homepage              = "http://github.com/kylejginavan/has_safe_dates"
+  s.require_paths         = ["lib"]
+  s.test_files            = `git ls-files -- {test,spec,features}/*`.split("\n")
+  s.executables           = `git ls-files -- bin/*`.split("\n").map { |f| File.basename(f) }
+  s.summary               = "Chronic based date setting for ActiveRecord models"
+  s.licenses              = ["HQ"]
 
-  if s.respond_to? :specification_version then
-    s.specification_version = 3
+  s.add_dependency "chronic",                                    "~> 0.10"
 
-    if Gem::Version.new(Gem::VERSION) >= Gem::Version.new("1.2.0") then
-      s.add_development_dependency("activerecord", ["~> 6.0"])
-      s.add_development_dependency("bundler", ["~> 2.0"])
-      s.add_dependency("chronic")
-      s.add_development_dependency("database_cleaner")
-      s.add_development_dependency("rdoc", ["~> 3.12"])
-      s.add_development_dependency("rspec", [">= 0", "< 3"])
-      s.add_development_dependency("rspec_junit_formatter", ["~> 0.3", ">= 0.3.0"])
-      s.add_development_dependency("sqlite3")
-    else
-      s.add_dependency("activerecord", [">= 3.1.0"])
-      s.add_dependency("bundler", ["~> 2.0"])
-      s.add_dependency("chronic")
-      s.add_dependency("rdoc", ["~> 3.12"])
-      s.add_dependency("rspec", [">= 0"])
-    end
-  else
-    s.add_dependency("activerecord", [">= 3.1.0"])
-    s.add_dependency("bundler", ["~> 2.0"])
-    s.add_dependency("chronic")
-    s.add_dependency("rdoc", ["~> 3.12"])
-    s.add_dependency("rspec", [">= 0"])
-  end
+  s.add_development_dependency "activerecord",                   "~> 7.2"
+  s.add_development_dependency "database_cleaner",               "~> 2.1"
+  s.add_development_dependency "rdoc",                           "~> 7.0"
+  s.add_development_dependency "rspec",                          "~> 3.13"
+  s.add_development_dependency "rspec_junit_formatter",          "~> 0.6", ">= 0.3.0"
 end
diff --git a/lib/has_safe_dates/core_ext.rb b/lib/has_safe_dates/core_ext.rb
index 3feb84b..1d4b174 100644
--- a/lib/has_safe_dates/core_ext.rb
+++ b/lib/has_safe_dates/core_ext.rb
@@ -72,11 +72,11 @@ def execute_callstack_for_multiparameter_attributes(callstack)
           end
         end
       else
-        super(callstack)  # has_safe_dates is not enabled for the current field, so invoke the super method
+        super(callstack) # has_safe_dates is not enabled for the current field, so invoke the super method
       end
     end
   end
 end
 
-::ActiveRecord::Base.send :include, ::HasSafeDates::CoreExt
-::ActiveRecord::Base.send :prepend, ::HasSafeDates::DateTimeExt
+::ActiveRecord::Base.include ::HasSafeDates::CoreExt
+::ActiveRecord::Base.prepend ::HasSafeDates::DateTimeExt
diff --git a/lib/has_safe_dates/version.rb b/lib/has_safe_dates/version.rb
index 9c5a43a..634deb8 100644
--- a/lib/has_safe_dates/version.rb
+++ b/lib/has_safe_dates/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module HasSafeDates
-  VERSION = "2.0.3"
+  VERSION = "5.0.0-beta.3"
 end
diff --git a/spec/db/schema.rb b/spec/db/schema.rb
index 2491183..778e5a6 100644
--- a/spec/db/schema.rb
+++ b/spec/db/schema.rb
@@ -1,8 +1,9 @@
-# require File.join(File.dirname(__FILE__), 'fixtures/document')
+# frozen_string_literal: true
 
-ActiveRecord::Schema.define(:version => 0) do
+# require File.join(File.dirname(__FILE__), 'fixtures/document')
 
-  create_table "comments", :force => true do |t|
+ActiveRecord::Schema.define(version: 0) do
+  create_table "comments", force: true do |t|
     t.text     "body"
     t.date     "approved_at"
     t.date     "created_at"
@@ -10,7 +11,7 @@
     t.datetime "published_at"
   end
 
-  create_table "posts", :force => true do |t|
+  create_table "posts", force: true do |t|
     t.string   "title"
     t.date     "published_date"
     t.date     "safe_date"
@@ -18,5 +19,4 @@
     t.date     "created_at"
     t.date     "updated_at"
   end
-
 end
diff --git a/spec/has_safe_dates_spec.rb b/spec/has_safe_dates_spec.rb
index 9ec6d1b..cbcb88d 100644
--- a/spec/has_safe_dates_spec.rb
+++ b/spec/has_safe_dates_spec.rb
@@ -1,132 +1,131 @@
-require 'spec_helper'
+# frozen_string_literal: true
+
+require "spec_helper"
 
 class TestUser < ActiveRecord::Base; end
 
 class Post < ActiveRecord::Base
-  has_safe_dates :published_date, :safe_date, :error_message => 'is not a real date'
+  has_safe_dates :published_date, :safe_date, error_message: "is not a real date"
 end
 
 class Comment < ActiveRecord::Base
-  has_safe_dates :approved_at, :published_at, :error_message => 'is not a real date'
+  has_safe_dates :approved_at, :published_at, error_message: "is not a real date"
 end
 
-describe "HasSafeDates" do
-
-  before(:each) do
+RSpec.describe "HasSafeDates" do
+  before do
     @post = Post.new
     @comment = Comment.new
   end
 
   describe "class method" do
-
     it "should work" do
-      expect {
-        TestUser.send(:has_safe_dates, :published_date)
-      }.to_not raise_error
+      expect { TestUser.send(:has_safe_dates, :published_date) }.not_to raise_error
     end
 
     it "should raise an error if no fields are passed in" do
-      expect {
-        TestUser.send(:has_safe_dates)
-      }.to raise_error(ArgumentError, 'Must define the fields you want to be converted to safe dates with "has_safe_dates :my_field_name_date, :my_other_field_name_date"')
+      expect { TestUser.send(:has_safe_dates) }.
+        to raise_error(ArgumentError,
+                       'Must define the fields you want to be converted to safe dates with "has_safe_dates :my_field_name_date, :my_other_field_name_date"')
     end
 
-    it "does not touch an field that it has not been told to make safe" do
-      @post.update_attribute(:unsafe_date, '1st of December 2012')
+    it "does not touch a field that it has not been told to make safe" do
+      @post.update_attribute(:unsafe_date, "1st of December 2012")
       @post.reload
-      @post.unsafe_date.should be_nil
+
+      expect(@post.unsafe_date).to be_nil
     end
   end
 
   describe "safe date parsing" do
-
-    ['2012-12-1', '1st of December 2012', 'first of dec 2012', '1 Dec 2012'].each do |date|
+    ["2012-12-1", "1st of December 2012", "first of dec 2012", "1 Dec 2012"].each do |date|
       it "allows you to set the date as '#{date}'" do
         @post.update_attribute(:safe_date, date)
         @comment.update_attribute(:approved_at, date)
         @post.reload
         @comment.reload
-        @post.safe_date.should == Date.new(2012, 12, 1)
-        @comment.approved_at.should == Date.new(2012, 12, 1)
+
+        expect(@post.safe_date).to eq(Date.new(2012, 12, 1))
+        expect(@comment.approved_at).to eq(Date.new(2012, 12, 1))
       end
     end
 
-    ['     ', '', nil].each do |date|
+    ["     ", "", nil].each do |date|
       it "sets the field to nil if given the blank value #{date.inspect}" do
         @post.safe_date = date
         @post.valid?
-        @post.safe_date.should == nil
-        @post.errors.should be_blank
+
+        expect(@post.safe_date).to be_nil
+        expect(@post.errors).to be_empty
       end
     end
 
-    ['random', 'does not compute'].each do |date|
+    ["random", "does not compute"].each do |date|
       it "sets the field to nil and sets a validation error if given the value #{date.inspect}" do
         @post.safe_date = date
         @post.valid?
-        @post.safe_date.should == nil
-        @post.errors.should_not be_blank
-        @post.errors[:safe_date].should == ['is not a real date']
+
+        expect(@post.safe_date).to be_nil
+        expect(@post.errors[:safe_date]).to eq(["is not a real date"])
       end
     end
-
   end
 
   describe "multiparameter parsing" do
+    it "doesn't blow up when given incorrect values" do
+      invalid_post_attributes = { "published_date(1i)" => "2001", "published_date(2i)" => "12", "published_date(3i)" => "abc" }
+      invalid_comment_attributes = { "approved_at(1i)" => "2001", "approved_at(2i)" => "15", "approved_at(3i)" => "17" }
 
-    it "doesn't blow up when given an incorrect values" do
-      invalid_post_attributes = {'published_date(1i)' => "2001", 'published_date(2i)' => "12", 'published_date(3i)' => "abc"}
-      invalid_comment_attributes = {'approved_at(1i)' => "2001", 'approved_at(2i)' => "15", 'approved_at(3i)' => "17"}
-      expect {
+      expect do
         @post.update(invalid_post_attributes)
         @comment.update(invalid_comment_attributes)
-      }.to_not raise_error
+      end.not_to raise_error
     end
 
     it "does not interfere with a date column that it has not been told to make safe" do
-      invalid_attributes = {'unsafe_date(1i)' => "2001", 'unsafe_date(2i)' => "12", 'unsafe_date(3i)' => "abc"}
-      expect {
-        @post.update(invalid_attributes)
-      }.to raise_error(ActiveRecord::MultiparameterAssignmentErrors)
+      invalid_attributes = { "unsafe_date(1i)" => "2001", "unsafe_date(2i)" => "12", "unsafe_date(3i)" => "abc" }
+
+      expect { @post.update(invalid_attributes) }.to raise_error(ActiveRecord::MultiparameterAssignmentErrors)
     end
 
     it "adds an error when Chronic returns nil" do
-      invalid_post_attributes = {'published_date(1i)' => "2014", 'published_date(2i)' => "12", 'published_date(3i)' => "abc"}
+      invalid_post_attributes = { "published_date(1i)" => "2014", "published_date(2i)" => "12", "published_date(3i)" => "abc" }
       @post.update(invalid_post_attributes)
-      @post.errors[:published_date].should == ['is not a real date']
+
+      expect(@post.errors[:published_date]).to eq(["is not a real date"])
     end
 
     context "with time" do
       it "works" do
-        invalid_comment_attributes = {'published_at(1i)' => "2014", 'published_at(2i)' => "12", 'published_at(3i)' => "22", 'published_at(4i)' => "12", 'published_at(5i)' => "34"}
-        expect {
-          @comment.update(invalid_comment_attributes)
-        }.to_not raise_error
-        expect(@comment.published_at.utc.strftime("%FT%T%:z")).to eq(Time.new(2014, 12, 22, 12, 34).utc.strftime("%FT%T%:z"))
+        attrs = { "published_at(1i)" => "2014", "published_at(2i)" => "12", "published_at(3i)" => "22", "published_at(4i)" => "12", "published_at(5i)" => "34" }
+
+        expect { @comment.update(attrs) }.not_to raise_error
+        expect(@comment.published_at.utc.strftime("%FT%T%:z")).
+          to eq(Time.new(2014, 12, 22, 12, 34).utc.strftime("%FT%T%:z"))
       end
 
-      it "doesn't blow up when given an incorrect values" do
-        invalid_post_attributes = {'published_date(1i)' => "2001", 'published_date(2i)' => "12", 'published_date(3i)' => "17", 'published_date(4i)' => "12", 'published_date(5i)' => "34"}
-        invalid_comment_attributes = {'published_at(1i)' => "2001", 'published_at(2i)' => "15", 'published_at(3i)' => "17", 'published_at(4i)' => "12", 'published_at(5i)' => "34"}
-        expect {
+      it "doesn't blow up when given incorrect values" do
+        invalid_post_attributes = { "published_date(1i)" => "2001", "published_date(2i)" => "12", "published_date(3i)" => "17", "published_date(4i)" => "12", "published_date(5i)" => "34" }
+        invalid_comment_attributes = { "published_at(1i)" => "2001", "published_at(2i)" => "15", "published_at(3i)" => "17", "published_at(4i)" => "12", "published_at(5i)" => "34" }
+
+        expect do
           @post.update(invalid_post_attributes)
           @comment.update(invalid_comment_attributes)
-        }.to_not raise_error
+        end.not_to raise_error
       end
 
       it "does not interfere with a date column that it has not been told to make safe" do
-        invalid_attributes = {'unsafe_date(1i)' => "2011", 'unsafe_date(2i)' => "9", 'unsafe_date(3i)' => "83", 'unsafe_date(4i)' => "12", 'unsafe_date(5i)' => "34"}
-        expect {
-          @post.update(invalid_attributes)
-        }.to raise_error(ActiveRecord::MultiparameterAssignmentErrors)
+        invalid_attributes = { "unsafe_date(1i)" => "2011", "unsafe_date(2i)" => "9", "unsafe_date(3i)" => "83", "unsafe_date(4i)" => "12", "unsafe_date(5i)" => "34" }
+
+        expect { @post.update(invalid_attributes) }.to raise_error(ActiveRecord::MultiparameterAssignmentErrors)
       end
 
       it "adds an error when Chronic returns nil" do
-        invalid_comment_attributes = {'published_at(1i)' => "2009", 'published_at(2i)' => "12", 'published_at(3i)' => "90", 'published_at(4i)' => "12", 'published_at(5i)' => "34"}
-        @comment.update(invalid_comment_attributes)
-        @comment.errors[:published_at].should == ['is not a real date']
+        attrs = { "published_at(1i)" => "2009", "published_at(2i)" => "12", "published_at(3i)" => "90", "published_at(4i)" => "12", "published_at(5i)" => "34" }
+        @comment.update(attrs)
+
+        expect(@comment.errors[:published_at]).to eq(["is not a real date"])
       end
     end
   end
-
 end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index c312067..c541961 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,3 +1,6 @@
+# frozen_string_literal: true
+
+require "logger"
 require "active_support"
 require "active_record"
 require "database_cleaner"
@@ -5,32 +8,25 @@
 
 ENV["debug"] = "test" unless ENV["debug"]
 
-# Establish DB Connection
-config = YAML::load(IO.read(File.join(File.dirname(__FILE__), "db", "database.yml")))
-ActiveRecord::Base.configurations = {"test" => config[ENV["DB"] || "sqlite3"]}
-ActiveRecord::Base.establish_connection(ActiveRecord::Base.configurations["test"])
+config_path = File.join(__dir__, "db", "database.yml")
+config = YAML.load_file(config_path)
+
+db_key = ENV["DB"] || "sqlite3"
+db_config = config.fetch(db_key)
 
-# Load Test Schema into the Database
-load(File.dirname(__FILE__) + "/db/schema.rb")
+ActiveRecord::Base.establish_connection(db_config)
 
-# Load in our code
-$LOAD_PATH.unshift "#{File.dirname(__FILE__)}/../lib"
+load File.join(__dir__, "db", "schema.rb")
 
+$LOAD_PATH.unshift File.expand_path("../lib", __dir__)
 require "has_safe_dates"
 
 RSpec.configure do |config|
-
   config.before(:suite) do
     DatabaseCleaner.strategy = :transaction
     DatabaseCleaner.clean_with(:truncation)
   end
 
-  config.before(:each) do
-    DatabaseCleaner.start
-  end
-
-  config.after(:each) do
-    DatabaseCleaner.clean
-  end
-
+  config.before(:each) { DatabaseCleaner.start }
+  config.after(:each)  { DatabaseCleaner.clean }
 end