diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
new file mode 100644
index 0000000..74482a8
--- /dev/null
+++ b/.github/workflows/ci.yaml
@@ -0,0 +1,58 @@
+name: CI
+
+on:
+  pull_request:
+    branches: ['*']
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby-version: ['3.0', '3.1', '3.4', '4.0']
+
+    env:
+      S3_ENDPOINT: http://localhost:9000
+      S3_BUCKET: test
+      GCS_ENDPOINT: http://localhost:8080/
+      GCS_BUCKET: some-bucket
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Start MinIO
+        run: |
+          docker run -d --name minio \
+            -p 9000:9000 \
+            --entrypoint sh \
+            minio/minio:RELEASE.2025-04-22T22-12-26Z \
+            -c 'mkdir -p /data/test && minio server /data --json'
+
+      - name: Start fake-gcs-server
+        run: |
+          docker run -d --name gcs \
+            -p 8080:8080 \
+            --entrypoint sh \
+            fsouza/fake-gcs-server \
+            -c 'mkdir -p /data/some-bucket && /bin/fake-gcs-server -port 8080 -scheme http -external-url=http://localhost:8080 -public-host=localhost:8080 -filesystem-root /data'
+
+      - name: Wait for services
+        run: |
+          for i in $(seq 1 30); do
+            curl -sf http://localhost:9000/minio/health/live && curl -sf http://localhost:8080/ && break
+            sleep 1
+          done
+
+      - name: Set up Ruby ${{ matrix.ruby-version }}
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby-version }}
+          bundler-cache: true
+
+      - name: Rubocop
+        run: bundle exec rubocop --display-style-guide --extra-details
+
+      - name: RSpec
+        run: bundle exec rspec
diff --git a/.pryrc b/.pryrc
index 222e0ff..593ecf6 100644
--- a/.pryrc
+++ b/.pryrc
@@ -6,8 +6,8 @@ require 'cloud_storage'
 require 'cloud_storage/wrappers/gcs'
 require 'cloud_storage/wrappers/s3'
 
-require_relative './spec/rspec_helpers/gcs'
-require_relative './spec/rspec_helpers/s3'
+require_relative 'spec/rspec_helpers/gcs'
+require_relative 'spec/rspec_helpers/s3'
 
 # rubocop:disable Style/MixinUsage
 include RSpecHelpers::Gcs
diff --git a/.rubocop.yml b/.rubocop.yml
index b907bcf..4c3ae4a 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,7 +1,7 @@
 inherit_from:
   - .rubocop_todo.yml
 
-require:
+plugins:
   - rubocop-rspec
   - rubocop-performance
 
@@ -11,6 +11,7 @@ AllCops:
   Exclude:
     - 'bin/**/*'
     - 'uploads/**/*'
+    - 'vendor/**/*'
 
 Layout/LineLength:
   Max: 120
diff --git a/Gemfile b/Gemfile
index a500a47..69fadb2 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,3 +11,9 @@ gem 'rubocop-rspec', require: false
 
 gem 'aws-sdk-s3', require: false
 gem 'google-cloud-storage', require: false
+
+gem 'pry-byebug'
+gem 'rake'
+gem 'rspec'
+gem 'simplecov'
+gem 'webmock'
diff --git a/cloud_storage.gemspec b/cloud_storage.gemspec
index 770cafa..7280025 100644
--- a/cloud_storage.gemspec
+++ b/cloud_storage.gemspec
@@ -16,12 +16,6 @@ Gem::Specification.new do |spec|
   spec.metadata['homepage_uri'] = spec.homepage
   spec.metadata['source_code_uri'] = 'https://github.com/wallarm/cloud_storage'
 
-  spec.add_development_dependency 'pry-byebug'
-  spec.add_development_dependency 'rake'
-  spec.add_development_dependency 'rspec'
-  spec.add_development_dependency 'simplecov'
-  spec.add_development_dependency 'webmock'
-
   spec.files = Dir.chdir(File.expand_path(__dir__)) do
     `git ls-files -z`.split("\x0").reject { |f| f.match(%r{\A(?:test|spec|features)/}) }
   end
diff --git a/dip.yml b/dip.yml
index 6546cfb..a45b238 100644
--- a/dip.yml
+++ b/dip.yml
@@ -1,7 +1,7 @@
 version: '2'
 
 environment:
-  DOCKER_RUBY_VERSION: 3.0
+  DOCKER_RUBY_VERSION: 3.4
   S3_ENDPOINT: http://s3:9000
   S3_BUCKET: wallarm-devtmp-ipfeeds-presigned-urls-research
   GCS_ENDPOINT: http://gcs:8080/
@@ -26,7 +26,6 @@ interaction:
 
   rspec:
     service: app
-    environment:
     command: bundle exec rspec
 
   rubocop:
diff --git a/docker/Dockerfile.dip b/docker/Dockerfile.dip
index f4ad700..593b655 100644
--- a/docker/Dockerfile.dip
+++ b/docker/Dockerfile.dip
@@ -1,5 +1,5 @@
 ARG DOCKER_RUBY_VERSION
-FROM ruby:${DOCKER_RUBY_VERSION}-alpine
+FROM ruby:${DOCKER_RUBY_VERSION:-3.4}-alpine
 
 RUN gem update --system
 RUN apk add --update --no-cache less git build-base curl mc htop
diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 3fa1eda..a43b10d 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -24,7 +24,7 @@ services:
       - gcs
 
   s3:
-    image: minio/minio:edge
+    image: minio/minio:RELEASE.2025-04-22T22-12-26Z
     volumes:
       - ../uploads/s3:/data
     command: server /data --json
@@ -40,5 +40,5 @@ services:
 
 volumes:
   bundler-data:
-    external:
-      name: bundler_data
+    name: bundler_data
+    external: true
diff --git a/lib/cloud_storage.rb b/lib/cloud_storage.rb
index e36ce4a..007b603 100644
--- a/lib/cloud_storage.rb
+++ b/lib/cloud_storage.rb
@@ -6,7 +6,8 @@
 require_relative 'cloud_storage/objects/base'
 
 module CloudStorage
-  ObjectNotFound = Class.new(StandardError)
+  class ObjectNotFound < StandardError
+  end
 
   class << self
     def register_wrapper(klass)
diff --git a/lib/cloud_storage/objects/gcs.rb b/lib/cloud_storage/objects/gcs.rb
index 866fe8b..e48f8b9 100644
--- a/lib/cloud_storage/objects/gcs.rb
+++ b/lib/cloud_storage/objects/gcs.rb
@@ -4,7 +4,7 @@ module CloudStorage
   module Objects
     class Gcs < Base
       def initialize(internal, uri:)
-        super internal
+        super(internal)
         @uri = uri
       end
 
diff --git a/lib/cloud_storage/objects/s3.rb b/lib/cloud_storage/objects/s3.rb
index af77471..1fa0ac8 100644
--- a/lib/cloud_storage/objects/s3.rb
+++ b/lib/cloud_storage/objects/s3.rb
@@ -6,7 +6,7 @@ class S3 < Base
       attr_reader :bucket_name
 
       def initialize(internal, resource:, client:, bucket_name:)
-        super internal
+        super(internal)
 
         @bucket_name = bucket_name
         @resource = resource
diff --git a/lib/cloud_storage/wrappers/s3.rb b/lib/cloud_storage/wrappers/s3.rb
index 42d44f0..73967ca 100644
--- a/lib/cloud_storage/wrappers/s3.rb
+++ b/lib/cloud_storage/wrappers/s3.rb
@@ -34,7 +34,7 @@ def each
               resource: @resource,
               client: @client
           end
-        rescue Aws::S3::Errors::NoSuchBucket, Aws::S3::Errors::NotFound
+        rescue Aws::S3::Errors::NoSuchBucket, Aws::S3::Errors::NotFound, Aws::S3::Errors::InvalidBucketName
         end
       end
 
@@ -44,19 +44,22 @@ def files(**opts)
 
       def exist?(key)
         resource.bucket(@bucket_name).object(key).exists?
+      rescue Aws::S3::Errors::NoSuchBucket, Aws::S3::Errors::NotFound,
+             Aws::S3::Errors::InvalidBucketName, Aws::S3::Errors::BadRequest
+        false
       end
 
       def upload_file(key:, file:, **opts)
-        obj = resource.bucket(@bucket_name).object(key)
+        return unless upload_file_or_io(key, file, **opts)
 
-        return unless upload_file_or_io(obj, file, **opts)
+        obj = resource.bucket(@bucket_name).object(key)
 
         Objects::S3.new \
           obj,
           bucket_name: @bucket_name,
           resource: resource,
           client: client
-      rescue Aws::S3::Errors::NoSuchBucket, Aws::S3::Errors::NotFound
+      rescue Aws::S3::Errors::NoSuchBucket, Aws::S3::Errors::NotFound, Aws::S3::Errors::InvalidBucketName
         raise ObjectNotFound, @bucket_name
       end
 
@@ -70,6 +73,9 @@ def find(key)
           bucket_name: @bucket_name,
           resource: resource,
           client: client
+      rescue Aws::S3::Errors::NoSuchBucket, Aws::S3::Errors::NotFound,
+             Aws::S3::Errors::InvalidBucketName, Aws::S3::Errors::BadRequest
+        raise ObjectNotFound, key
       end
 
       def delete_files(keys)
@@ -80,7 +86,7 @@ def delete_files(keys)
               objects: keys.map { |key| { key: key } },
               quiet: true
             }
-      rescue Aws::S3::Errors::NoSuchBucket, Aws::S3::Errors::NotFound
+      rescue Aws::S3::Errors::NoSuchBucket, Aws::S3::Errors::NotFound, Aws::S3::Errors::InvalidBucketName
       end
 
       private
@@ -93,13 +99,19 @@ def resource
         @resource ||= Aws::S3::Resource.new(@options)
       end
 
-      def upload_file_or_io(obj, file_or_io, **opts)
+      def upload_file_or_io(key, file_or_io, **opts)
         if file_or_io.respond_to?(:path)
-          obj.upload_file(file_or_io.path, **opts)
+          transfer_manager.upload_file(file_or_io.path, bucket: @bucket_name, key: key, **opts)
         else
-          obj.upload_stream(**opts) { |write_stream| IO.copy_stream(file_or_io, write_stream) }
+          transfer_manager.upload_stream(bucket: @bucket_name, key: key, **opts) do |write_stream|
+            IO.copy_stream(file_or_io, write_stream)
+          end
         end
       end
+
+      def transfer_manager
+        @transfer_manager ||= Aws::S3::TransferManager.new(client: client)
+      end
     end
   end
 end
diff --git a/spec/cloud_storage/objects/gcs_spec.rb b/spec/cloud_storage/objects/gcs_spec.rb
index 28d7a69..b0a78c3 100644
--- a/spec/cloud_storage/objects/gcs_spec.rb
+++ b/spec/cloud_storage/objects/gcs_spec.rb
@@ -22,7 +22,8 @@
     context 'when with some internal options' do
       subject(:url) { obj.signed_url(expires_in: 30, issuer: 'max@tretyakov-ma.ru', signing_key: key, version: :v2) }
 
-      it { is_expected.to match(%r{\Ahttps://storage.googleapis.com/#{ENV.fetch('GCS_BUCKET')}/test_1.txt}) }
+      it { is_expected.to match(%r{\A#{ENV.fetch('GCS_ENDPOINT')}#{ENV.fetch('GCS_BUCKET')}/test_1.txt}) }
+      it { is_expected.to match(/GoogleAccessId=/) }
     end
   end