diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b173508..899fa7b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["3.0", "3.1", "3.2", "3.3"]
+        ruby: ["3.3", "3.4", "4.0"]
 
     name: ${{ matrix.ruby }}
 
@@ -39,7 +39,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["3.2", "3.3"]
+        ruby: ["3.4", "4.0"]
 
     name: http 6 / Ruby ${{ matrix.ruby }}
 
diff --git a/.rubocop.yml b/.rubocop.yml
index 827d668..0fd6a99 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -5,7 +5,7 @@ inherit_gem:
 
 AllCops:
   DisplayCopNames: true
-  TargetRubyVersion: 3.0
+  TargetRubyVersion: 3.3
   Include:
     - bin/console
     - Gemfile
diff --git a/Gemfile.lock b/Gemfile.lock
index 28cf5f0..5532a49 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,24 +7,27 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (7.1.4)
+    activesupport (8.1.3)
       base64
       bigdecimal
-      concurrent-ruby (~> 1.0, >= 1.0.2)
+      concurrent-ruby (~> 1.0, >= 1.3.1)
       connection_pool (>= 2.2.5)
       drb
       i18n (>= 1.6, < 2)
+      json
+      logger (>= 1.4.2)
       minitest (>= 5.1)
-      mutex_m
-      tzinfo (~> 2.0)
+      securerandom (>= 0.3)
+      tzinfo (~> 2.0, >= 2.0.5)
+      uri (>= 0.13.1)
     addressable (2.8.7)
       public_suffix (>= 2.0.2, < 7.0)
     ast (2.4.2)
-    base64 (0.2.0)
-    bigdecimal (3.1.8)
+    base64 (0.3.0)
+    bigdecimal (4.1.2)
     coderay (1.1.3)
-    concurrent-ruby (1.3.4)
-    connection_pool (2.4.1)
+    concurrent-ruby (1.3.7)
+    connection_pool (3.0.2)
     coveralls (0.7.2)
       multi_json (~> 1.3)
       rest-client (= 1.6.7)
@@ -37,7 +40,7 @@ GEM
     diff-lcs (1.5.1)
     docile (1.4.1)
     domain_name (0.6.20240107)
-    drb (2.2.1)
+    drb (2.2.3)
     ffi (1.17.0)
     ffi-compiler (1.3.2)
       ffi (>= 1.15.5)
@@ -52,33 +55,40 @@ GEM
     http-cookie (1.0.7)
       domain_name (~> 0.5)
     http-form_data (2.3.0)
-    i18n (1.14.6)
+    i18n (1.15.1)
       concurrent-ruby (~> 1.0)
+    io-console (0.8.2)
     json (2.7.2)
     language_server-protocol (3.17.0.3)
     llhttp-ffi (0.5.0)
       ffi-compiler (~> 1.0)
       rake (~> 13.0)
+    logger (1.7.0)
     method_source (1.1.0)
     mime-types (3.5.2)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2024.0903)
-    minitest (5.25.1)
+    minitest (6.0.6)
+      drb (~> 2.0)
+      prism (~> 1.5)
     multi_json (1.15.0)
-    mutex_m (0.2.0)
     parallel (1.26.3)
     parser (3.3.5.0)
       ast (~> 2.4.1)
       racc
-    pry (0.14.2)
+    prism (1.9.0)
+    pry (0.16.0)
       coderay (~> 1.1)
       method_source (~> 1.0)
+      reline (>= 0.6.0)
     public_suffix (6.0.1)
     racc (1.8.1)
     rack (3.1.7)
     rainbow (3.1.1)
     rake (13.2.1)
     regexp_parser (2.9.2)
+    reline (0.6.3)
+      io-console (~> 0.5)
     rest-client (1.6.7)
       mime-types (>= 1.16)
     rexml (3.3.7)
@@ -132,6 +142,7 @@ GEM
     rubocop-sequel (0.3.4)
       rubocop (~> 1.0)
     ruby-progressbar (1.13.0)
+    securerandom (0.4.1)
     simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
@@ -146,6 +157,7 @@ GEM
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.6.0)
+    uri (1.1.1)
     webmock (3.23.1)
       addressable (>= 2.8.0)
       crack (>= 0.3.2)
diff --git a/ezclient.gemspec b/ezclient.gemspec
index f767b0f..394aba7 100644
--- a/ezclient.gemspec
+++ b/ezclient.gemspec
@@ -5,7 +5,7 @@ $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require "ezclient/version"
 
 Gem::Specification.new do |spec|
-  spec.required_ruby_version = ">= 3.0"
+  spec.required_ruby_version = ">= 3.3"
 
   spec.name = "ezclient"
   spec.version = EzClient::VERSION
diff --git a/lib/ezclient.rb b/lib/ezclient.rb
index 4cc6ada..e2fb924 100644
--- a/lib/ezclient.rb
+++ b/lib/ezclient.rb
@@ -13,8 +13,8 @@
 require_relative "ezclient/check_options"
 
 module EzClient
-  def self.new(*args)
-    Client.new(*args)
+  def self.new(*)
+    Client.new(*)
   end
 
   def self.get_time
diff --git a/lib/ezclient/client.rb b/lib/ezclient/client.rb
index 663ee61..efc06d5 100644
--- a/lib/ezclient/client.rb
+++ b/lib/ezclient/client.rb
@@ -32,23 +32,23 @@ def request(verb, url, **options)
 
     if keep_alive_timeout
       client = persistent_client_registry.for(
-        url, ssl_context: ssl_context, timeout: keep_alive_timeout
+        url, ssl_context:, timeout: keep_alive_timeout
       )
     else
       client = HTTP::Client.new
     end
 
-    EzClient::Request.new(verb, url, client: client, **options).tap do |request|
+    EzClient::Request.new(verb, url, client:, **options).tap do |request|
       request.api_auth!(*api_auth) if api_auth
     end
   end
 
-  def perform(*args, **kwargs)
-    request(*args, **kwargs).perform
+  def perform(*, **)
+    request(*, **).perform
   end
 
-  def perform!(*args, **kwargs)
-    request(*args, **kwargs).perform!
+  def perform!(*, **)
+    request(*, **).perform!
   end
 
   private
diff --git a/lib/ezclient/httprb_compatibility.rb b/lib/ezclient/httprb_compatibility.rb
index 86ea72f..d8fee4c 100644
--- a/lib/ezclient/httprb_compatibility.rb
+++ b/lib/ezclient/httprb_compatibility.rb
@@ -41,7 +41,7 @@ def persistent_client(origin, keep_alive_timeout)
     if client_supports_build_request?
       HTTP.persistent(origin, timeout: keep_alive_timeout)
     else
-      HTTP::Client.new(persistent: origin, keep_alive_timeout: keep_alive_timeout)
+      HTTP::Client.new(persistent: origin, keep_alive_timeout:)
     end
   end
 
diff --git a/lib/ezclient/request.rb b/lib/ezclient/request.rb
index 16f463a..e699779 100644
--- a/lib/ezclient/request.rb
+++ b/lib/ezclient/request.rb
@@ -86,10 +86,10 @@ def perform!
     end
   end
 
-  def api_auth!(*args)
+  def api_auth!(*)
     raise "ApiAuth gem is not loaded" unless defined?(ApiAuth)
 
-    ApiAuth.sign!(api_auth_request, *args)
+    ApiAuth.sign!(api_auth_request, *)
     self
   end
 
@@ -205,11 +205,11 @@ def redirector(options)
     EzClient::HttprbCompatibility.redirector(options)
   end
 
-  def with_retry(&block)
+  def with_retry(&)
     retries = 0
 
     begin
-      retry_on_connection_error(&block)
+      retry_on_connection_error(&)
     rescue *retried_exceptions => error
       if retries < max_retries.to_i
         retries += 1
@@ -298,7 +298,7 @@ def basic_auth
       case options[:basic_auth]
       when Array
         user, password = options[:basic_auth]
-        { user: user, pass: password }
+        { user:, pass: password }
       when Hash
         options[:basic_auth]
       end
diff --git a/spec/ezclient_spec.rb b/spec/ezclient_spec.rb
index 17f3c20..d67e622 100644
--- a/spec/ezclient_spec.rb
+++ b/spec/ezclient_spec.rb
@@ -52,7 +52,7 @@ def self.sign!(*); end
     end
 
     context "when headers request option is provided" do
-      let(:request_options) { { headers: headers } }
+      let(:request_options) { { headers: } }
       let(:headers) { { some_header: 1 } }
 
       it "makes request with proper headers" do
@@ -78,7 +78,7 @@ def self.sign!(*); end
       end
 
       context "when cookies request option is provided" do
-        let(:request_options) { { headers: headers, cookies: cookies } }
+        let(:request_options) { { headers:, cookies: } }
         let(:cookies) { { a: 1 } }
 
         it "makes request with proper headers" do
@@ -137,7 +137,7 @@ def self.sign!(*); end
     end
 
     context "when params request option is provided" do
-      let(:request_options) { { params: params } }
+      let(:request_options) { { params: } }
       let(:params) { { a: 1 } }
 
       it "makes proper request" do
@@ -184,7 +184,7 @@ def self.sign!(*); end
     end
 
     context "when on_complete callback is provided" do
-      let(:client_options) { { on_complete: on_complete } }
+      let(:client_options) { { on_complete: } }
       let(:calls) { [] }
 
       let(:on_complete) do
@@ -265,7 +265,7 @@ def self.sign!(*); end
     end
 
     context "when on_error callback is provided" do
-      let(:client_options) { { on_error: on_error } }
+      let(:client_options) { { on_error: } }
       let(:calls) { [] }
 
       let(:on_error) do
@@ -285,7 +285,7 @@ def self.sign!(*); end
     end
 
     context "when error_wrapper callback is provided" do
-      let(:client_options) { { error_wrapper: error_wrapper } }
+      let(:client_options) { { error_wrapper: } }
       let(:calls) { [] }
 
       let(:error_wrapper) do
@@ -314,7 +314,7 @@ def self.sign!(*); end
     end
 
     context "when on_retry callback is provided" do
-      let(:client_options) { { on_retry: on_retry } }
+      let(:client_options) { { on_retry: } }
       let(:request_options) { { metadata: :smth } }
       let(:calls) { [] }
 
@@ -549,7 +549,7 @@ def self.sign!(*); end
       end
 
       context "when on_retry callback is provided" do
-        let(:client_options) { { on_retry: on_retry } }
+        let(:client_options) { { on_retry: } }
         let(:request_options) { { retry_exceptions: SomeError, metadata: :smth } }
         let(:calls) { [] }
 
@@ -669,7 +669,7 @@ def build(verb, url)
     context "when follow redirect has on_redirect callback" do
       let(:verb) { :get }
       let(:calls) { [] }
-      let(:request_options) { { follow: { on_redirect: on_redirect } } }
+      let(:request_options) { { follow: { on_redirect: } } }
 
       let(:on_redirect) do
         proc do |response, redirect_request|
@@ -769,7 +769,7 @@ def build(verb, url)
   let(:cookies) { { sid: "a;b" } }
 
   let(:ezclient_request) do
-    EzClient.new.request(:get, "http://example.com", cookies: cookies)
+    EzClient.new.request(:get, "http://example.com", cookies:)
   end
 
   let(:http_request) { ezclient_request.send(:http_request) }
@@ -804,7 +804,7 @@ def build(verb, url)
         attr_reader :credentials
 
         def basic_auth(user:, pass:)
-          @credentials = { user: user, pass: pass }
+          @credentials = { user:, pass: }
           self
         end
       end
@@ -824,7 +824,7 @@ def basic_auth(user:, pass:)
         attr_reader :options
 
         def initialize(max_hops:)
-          @options = { max_hops: max_hops }
+          @options = { max_hops: }
         end
       end
     end
@@ -844,7 +844,7 @@ def initialize(max_hops:)
         attr_reader :attributes
 
         def initialize(status:, headers:)
-          @attributes = { status: status, headers: headers }
+          @attributes = { status:, headers: }
         end
       end
     end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 4b85fb5..f607898 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -40,11 +40,11 @@ def from_webmock(request, webmock_response, _request_signature = nil)
           body    = build_http_rb_response_body_from_webmock_response(webmock_response)
 
           EzClient::HttprbCompatibility.response(
-            status: status,
+            status:,
             version: "1.1",
-            headers: headers,
-            body: body,
-            request: request,
+            headers:,
+            body:,
+            request:,
           )
         end
       end