diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 17532bdd..711bddf3 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -12,13 +12,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-
       - uses: Swatinem/rust-cache@v2
-
       - uses: taiki-e/install-action@v2
         with:
           tool: selene,typos-cli
-
       - name: Run linters
         run: make lint
 
@@ -32,3 +29,13 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           version: latest
           args: --color always --check lua/ tests/
+
+  ruby_lint:
+    name: Rubocop
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+      - run: bundle exec rubocop
diff --git a/.rubocop.yml b/.rubocop.yml
index 21f6c734..52c146b0 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -5,3 +5,13 @@ AllCops:
   TargetRubyVersion: 3.3.1
 Style/StringLiterals:
   EnforcedStyle: double_quotes
+RSpec/DescribeClass:
+  Enabled: false
+RSpec/MultipleExpectations:
+  Enabled: false
+RSpec/ExampleLength:
+  Enabled: false
+RSpec/NestedGroups:
+  Enabled: false
+Style/NestedModifier:
+  Enabled: false
diff --git a/spec/popups/branch_popup_spec.rb b/spec/popups/branch_popup_spec.rb
index 4e6d6d84..5585f635 100644
--- a/spec/popups/branch_popup_spec.rb
+++ b/spec/popups/branch_popup_spec.rb
@@ -116,9 +116,7 @@ RSpec.describe "Branch Popup", :git, :nvim do
     end
 
     describe "Create new branch" do
-      it "can create a new branch" do
-
-      end
+      it "can create a new branch"
     end
 
     describe "Create new spin-off" do
@@ -150,6 +148,7 @@ RSpec.describe "Branch Popup", :git, :nvim do
     end
 
     describe "pull request" do
+      it "can open a pull-request"
     end
   end
 end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 37df0183..586c73d8 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -29,7 +29,7 @@ RSpec.configure do |config|
 
   config.include Helpers
 
-  config.around(:each) do |example|
+  config.around do |example|
     with_remote = example.metadata.fetch(:with_remote_origin, false)
 
     Dir.mktmpdir do |local|
diff --git a/spec/support/context/git.rb b/spec/support/context/git.rb
index a3191723..d9576b7d 100644
--- a/spec/support/context/git.rb
+++ b/spec/support/context/git.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-RSpec.shared_context "git", :git do
+RSpec.shared_context "with git", :git do
   let(:git) { Git.open(Dir.pwd) }
 
   before do
diff --git a/spec/support/context/nvim.rb b/spec/support/context/nvim.rb
index 4dd80823..a7e4e0e0 100644
--- a/spec/support/context/nvim.rb
+++ b/spec/support/context/nvim.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-RSpec.shared_context "nvim", :nvim do
+RSpec.shared_context "with nvim", :nvim do
   let(:nvim) { NeovimClient.new }
 
   before { nvim.setup }
diff --git a/spec/support/dependencies.rb b/spec/support/dependencies.rb
index 491ec299..eb129121 100644
--- a/spec/support/dependencies.rb
+++ b/spec/support/dependencies.rb
@@ -3,12 +3,12 @@
 return if ENV["CI"]
 
 def dir_name(name)
-  name.match(/[^\/]+\/(?<dir_name>[^\.]+)/)[:dir_name]
+  name.match(%r{[^/]+/(?<dir_name>[^\.]+)})[:dir_name]
 end
 
 def ensure_installed(name)
   tmp = File.join(PROJECT_DIR, "tmp")
-  Dir.mkdir(tmp) if !Dir.exist?(tmp)
+  FileUtils.mkdir_p(tmp)
 
   dir = File.join(tmp, dir_name(name))
 
diff --git a/spec/support/neovim_client.rb b/spec/support/neovim_client.rb
index f86b2b59..bf940a3e 100644
--- a/spec/support/neovim_client.rb
+++ b/spec/support/neovim_client.rb
@@ -5,7 +5,7 @@ class NeovimClient
     @instance = nil
   end
 
-  def setup
+  def setup # rubocop:disable Metrics/MethodLength
     @instance = attach_child
 
     # Sets up the runtimepath
@@ -30,7 +30,7 @@ class NeovimClient
     @instance = nil
   end
 
-  def print_screen
+  def print_screen # rubocop:disable Metrics/MethodLength
     @instance.command("redraw")
 
     screen  = []
@@ -63,7 +63,7 @@ class NeovimClient
   # Overload vim.fn.input() to prevent blocking.
   def input(*args)
     lua <<~LUA
-      local inputs = { #{args.map(&:inspect).join(",")} }
+      local inputs = { #{args.map(&:inspect).join(',')} }
 
       vim.fn.input = function()
         return table.remove(inputs, 1)
@@ -71,16 +71,14 @@ class NeovimClient
     LUA
   end
 
-  def keys(keys)
+  def keys(keys) # rubocop:disable Metrics/MethodLength
     keys = keys.chars
 
-    while keys.length > 0
+    until keys.empty?
       key = keys.shift
-      if key == "<"
-        key += keys.shift until key.last == ">"
-      end
+      key += keys.shift until key.last == ">" if key == "<"
 
-      if (written = @instance.input(key)).nil?
+      if @instance.input(key).nil?
         assert_alive!
         raise "Failed to write key to neovim: #{key.inspect}"
       end