diff --git a/.github/workflows/liquid.yml b/.github/workflows/liquid.yml
index bbd17139..717c4fd8 100644
--- a/.github/workflows/liquid.yml
+++ b/.github/workflows/liquid.yml
@@ -7,7 +7,6 @@ jobs:
     strategy:
       matrix:
         include:
-          - { ruby: '2.7', allowed-failure: false }
           - { ruby: '3.0', allowed-failure: false }
           - { ruby: '3.1', allowed-failure: false }
           - { ruby: '3.2', allowed-failure: false }
@@ -44,7 +43,6 @@ jobs:
       - uses: actions/checkout@v2
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.3
           bundler-cache: true
       - run: sudo apt-get install -y valgrind
       - run: bundle exec rake test:valgrind
diff --git a/.gitignore b/.gitignore
index 2934b7fe..b91fb243 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,5 @@
 *.gem
 *.rbc
-Gemfile.lock
 pkg
 tmp
 *.o
diff --git a/.rubocop.yml b/.rubocop.yml
index a8a66735..42284bc9 100755
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -4,7 +4,6 @@ inherit_gem:
 require: rubocop-performance
 
 AllCops:
-  TargetRubyVersion: 2.5
   Exclude:
     - 'vendor/bundle/**/*'
     - 'tmp/**/*'
diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 00000000..15a27998
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+3.3.0
diff --git a/Gemfile b/Gemfile
index 2aa3686b..c99748af 100755
--- a/Gemfile
+++ b/Gemfile
@@ -11,9 +11,9 @@ gem "liquid", github: "Shopify/liquid", ref: "master"
 
 group :test do
   gem "base64", require: false # for older rubocop on Ruby 3.4
-  gem "rubocop", "~> 1.24.1", require: false
+  gem "rubocop", "~> 1.61.0", require: false
   gem "rubocop-performance", "~> 1.13.2", require: false
-  gem "rubocop-shopify", "~> 2.4.0", require: false
+  gem "rubocop-shopify", "~> 2.15.1", require: false
   gem "spy", "0.4.1"
   gem "benchmark-ips"
   gem "ruby_memcheck"
diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 00000000..8dfbd358
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,85 @@
+GIT
+  remote: https://github.com/Shopify/liquid.git
+  revision: 0b9318222bcc09681e52fd5b8e70262274e673bf
+  ref: master
+  specs:
+    liquid (5.4.0)
+
+PATH
+  remote: .
+  specs:
+    liquid-c (4.2.0)
+      liquid (>= 5.0.1)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    ast (2.4.2)
+    base64 (0.2.0)
+    benchmark-ips (2.13.0)
+    byebug (11.1.3)
+    json (2.7.2)
+    language_server-protocol (3.17.0.3)
+    mini_portile2 (2.8.5)
+    minitest (5.22.3)
+    nokogiri (1.16.3)
+      mini_portile2 (~> 2.8.2)
+      racc (~> 1.4)
+    parallel (1.24.0)
+    parser (3.3.0.5)
+      ast (~> 2.4.1)
+      racc
+    racc (1.7.3)
+    rainbow (3.1.1)
+    rake (13.2.1)
+    rake-compiler (1.2.7)
+      rake
+    regexp_parser (2.9.0)
+    rexml (3.2.6)
+    rubocop (1.61.0)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 1.8, < 3.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.30.0, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.31.2)
+      parser (>= 3.3.0.4)
+    rubocop-performance (1.13.3)
+      rubocop (>= 1.7.0, < 2.0)
+      rubocop-ast (>= 0.4.0)
+    rubocop-shopify (2.15.1)
+      rubocop (~> 1.51)
+    ruby-progressbar (1.13.0)
+    ruby_memcheck (2.3.0)
+      nokogiri
+    spy (0.4.1)
+    stackprof (0.2.26)
+    unicode-display_width (2.5.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  base64
+  benchmark-ips
+  bundler (>= 1.5)
+  byebug
+  liquid!
+  liquid-c!
+  minitest
+  rake
+  rake-compiler
+  rubocop (~> 1.61.0)
+  rubocop-performance (~> 1.13.2)
+  rubocop-shopify (~> 2.15.1)
+  ruby_memcheck
+  spy (= 0.4.1)
+  stackprof
+
+BUNDLED WITH
+   2.4.22
diff --git a/ext/liquid_c/extconf.rb b/ext/liquid_c/extconf.rb
index a4ebe1a5..1faf8747 100755
--- a/ext/liquid_c/extconf.rb
+++ b/ext/liquid_c/extconf.rb
@@ -22,5 +22,5 @@
 
 have_func "rb_hash_bulk_insert"
 
-$warnflags&.gsub!(/-Wdeclaration-after-statement/, "")
+$warnflags&.gsub!("-Wdeclaration-after-statement", "")
 create_makefile("liquid_c")
diff --git a/lib/liquid/c.rb b/lib/liquid/c.rb
index 259c7d8f..eba53435 100644
--- a/lib/liquid/c.rb
+++ b/lib/liquid/c.rb
@@ -13,15 +13,17 @@ def render(context)
 
 module Liquid
   BlockBody.class_eval do
-    def self.c_rescue_render_node(context, output, line_number, exc, blank_tag)
-      # There seems to be a MRI ruby bug with how the rb_rescue C function,
-      # where $! gets set for its rescue callback, but it doesn't stay set
-      # after a nested exception is raised and handled as is the case in
-      # Liquid::Context#internal_error. This isn't a problem for plain ruby code,
-      # so use a ruby rescue block to have setup $! properly.
-      raise(exc)
-    rescue => exc
-      rescue_render_node(context, output, line_number, exc, blank_tag)
+    class << self
+      def c_rescue_render_node(context, output, line_number, exc, blank_tag)
+        # There seems to be a MRI ruby bug with how the rb_rescue C function,
+        # where $! gets set for its rescue callback, but it doesn't stay set
+        # after a nested exception is raised and handled as is the case in
+        # Liquid::Context#internal_error. This isn't a problem for plain ruby code,
+        # so use a ruby rescue block to have setup $! properly.
+        raise(exc)
+      rescue => exc
+        rescue_render_node(context, output, line_number, exc, blank_tag)
+      end
     end
   end
 end
@@ -100,6 +102,7 @@ def liquid_c_nodes_disabled?
     # provide the `disable_liquid_c_nodes` option to enable the Ruby AST to be produced
     # so the profiler can use it on future runs.
     return @liquid_c_nodes_disabled if defined?(@liquid_c_nodes_disabled)
+
     @liquid_c_nodes_disabled = !Liquid::C.enabled || @template_options[:profile] ||
       @template_options[:disable_liquid_c_nodes] || self.class.liquid_c_nodes_disabled
   end
@@ -234,15 +237,17 @@ def c_parse_evaluate(expression)
 end
 
 Liquid::ResourceLimits.class_eval do
-  def self.new(limits)
-    if Liquid::C.enabled
-      Liquid::C::ResourceLimits.new(
-        limits[:render_length_limit],
-        limits[:render_score_limit],
-        limits[:assign_score_limit]
-      )
-    else
-      super
+  class << self
+    def new(limits)
+      if Liquid::C.enabled
+        Liquid::C::ResourceLimits.new(
+          limits[:render_length_limit],
+          limits[:render_score_limit],
+          limits[:assign_score_limit],
+        )
+      else
+        super
+      end
     end
   end
 end
diff --git a/liquid-c.gemspec b/liquid-c.gemspec
index ba5e353e..8dfa40ab 100755
--- a/liquid-c.gemspec
+++ b/liquid-c.gemspec
@@ -1,8 +1,6 @@
 # coding: utf-8
 # frozen_string_literal: true
 
-# rubocop:disable Gemspec/RubyVersionGlobalsUsage
-
 lib = File.expand_path("../lib", __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require "liquid/c/version"
@@ -19,10 +17,9 @@ Gem::Specification.new do |spec|
   spec.extensions    = ["ext/liquid_c/extconf.rb"]
   spec.files         = %x(git ls-files -z).split("\x0")
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
-  spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.required_ruby_version = ">= 2.5.0"
+  spec.required_ruby_version = ">= 3.0.0"
 
   spec.metadata["allowed_push_host"] = "https://rubygems.org"
 
@@ -32,5 +29,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency("minitest")
   spec.add_development_dependency("rake")
   spec.add_development_dependency("rake-compiler")
-  spec.add_development_dependency("stackprof") if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new("2.1.0")
+  spec.add_development_dependency("stackprof") if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new("2.1.0") # rubocop:disable Gemspec/RubyVersionGlobalsUsage
 end
diff --git a/performance/c_profile.rb b/performance/c_profile.rb
index 49e5ad9b..8fe8a143 100644
--- a/performance/c_profile.rb
+++ b/performance/c_profile.rb
@@ -10,6 +10,7 @@
 unless TASK_NAMES.include?(task_name)
   raise "Unsupported task '#{task_name}' (must be one of #{TASK_NAMES})"
 end
+
 task = ThemeRunner.new.method(task_name)
 
 runner_id = fork do
diff --git a/test/unit/block_test.rb b/test/unit/block_test.rb
index 8f0a8892..cf3e512a 100644
--- a/test/unit/block_test.rb
+++ b/test/unit/block_test.rb
@@ -78,8 +78,8 @@ def test_disassemble
       0x0000: write_raw("raw")
       0x0005: render_variable_rescue(line_number: 2)
       0x0009: find_static_var("var")
-      0x000c: push_const(\"none\")
-      0x000f: push_const(\"allow_false\")
+      0x000c: push_const("none")
+      0x000f: push_const("allow_false")
       0x0012: push_true
       0x0013: hash_new(1)
       0x0015: builtin_filter(name: :default, num_args: 3)
@@ -97,6 +97,7 @@ def test_exception_renderer_exception
       if exc == original_error
         raise(handler_error)
       end
+
       exc
     end
     template = Liquid::Template.parse("{% assign x = raise_error %}")
diff --git a/test/unit/raw_test.rb b/test/unit/raw_test.rb
index 8f7a2442..3103d08d 100644
--- a/test/unit/raw_test.rb
+++ b/test/unit/raw_test.rb
@@ -25,7 +25,7 @@ def test_derived_class
       assert_equal(
         "<body>",
         output,
-        "Template: #{template}"
+        "Template: #{template}",
       )
     end
   end
@@ -76,10 +76,10 @@ def test_does_not_allow_nbsp_in_tag_delimiter
     ].each do |bad_delimiter|
       exception = assert_raises(
         Liquid::SyntaxError,
-        "#{bad_delimiter.inspect} did not raise Liquid::SyntaxError"
+        "#{bad_delimiter.inspect} did not raise Liquid::SyntaxError",
       ) do
         Liquid::Template.parse(
-          "{% raw %}body#{bad_delimiter}"
+          "{% raw %}body#{bad_delimiter}",
         )
       end
 
diff --git a/test/unit/variable_test.rb b/test/unit/variable_test.rb
index aa0bb14e..09a15f33 100644
--- a/test/unit/variable_test.rb
+++ b/test/unit/variable_test.rb
@@ -160,7 +160,7 @@ def test_write_object_with_broken_to_s
     end
     assert_equal(
       "VariableTest::StringConvertible#to_s returned a non-String convertible value of type Integer",
-      exc.message
+      exc.message,
     )
   end
 
@@ -264,7 +264,7 @@ def test_encoding_error_message_with_multi_byte_characters
     end
     assert_equal(
       "Liquid syntax error: Unexpected character \u00A0 in \"{{\u00a0}}\"",
-      exc.message
+      exc.message,
     )
 
     # 3 byte character
@@ -273,7 +273,7 @@ def test_encoding_error_message_with_multi_byte_characters
     end
     assert_equal(
       "Liquid syntax error: Unexpected character \u3042 in \"{{\u3042}}\"",
-      exc.message
+      exc.message,
     )
 
     # 4 byte character
@@ -282,7 +282,7 @@ def test_encoding_error_message_with_multi_byte_characters
     end
     assert_equal(
       "Liquid syntax error: Unexpected character \u{1F600} in \"{{\u{1F600}}}\"",
-      exc.message
+      exc.message,
     )
   end