diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2a2be31..84367bf 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,10 +11,10 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ['2.6', '2.7', '3.0', '3.1', '3.2']
+        ruby-version: ['3.0', '3.1', '3.2']
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
diff --git a/.rubocop.yml b/.rubocop.yml
index bde63b7..5d320cd 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -5,7 +5,7 @@ require:
 
 AllCops:
   NewCops: enable
-  TargetRubyVersion: 2.5
+  TargetRubyVersion: 3.0
 
 Layout/EmptyLinesAroundAttributeAccessor:
   Enabled: true
diff --git a/lib/rocket_chat/request_helper.rb b/lib/rocket_chat/request_helper.rb
index f280aa8..ed0722d 100644
--- a/lib/rocket_chat/request_helper.rb
+++ b/lib/rocket_chat/request_helper.rb
@@ -135,7 +135,7 @@ def add_form_data(request, form_data)
     end
 
     def reject_nils(data)
-      data&.reject { |_key, value| value.nil? }
+      data&.compact
     end
   end
 end
diff --git a/rocketchat.gemspec b/rocketchat.gemspec
index 896be91..26ca1eb 100644
--- a/rocketchat.gemspec
+++ b/rocketchat.gemspec
@@ -15,7 +15,7 @@ Gem::Specification.new do |spec|
   spec.description   = 'Rocket.Chat REST API v1 for Ruby'
   spec.homepage      = 'https://github.com/abrom/rocketchat-ruby'
   spec.license       = 'MIT'
-  spec.required_ruby_version = ['>= 2.5.0', '< 3.3.0']
+  spec.required_ruby_version = ['>= 3.0.0', '< 3.3.0']
 
   # Prevent pushing this gem to RubyGems.org by setting 'allowed_push_host', or
   # delete this section to allow pushing this gem to any host.