diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a2426e6..b00f111 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: [2.6, 2.7, 3.4, 4.0]
+        ruby-version: [3.4, 4.0]
     steps:
     - name: Checkout code
       uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
diff --git a/Gemfile b/Gemfile
index 25e99fd..5ed89d6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,6 +7,6 @@ gemspec
 
 gem 'rake', '~> 12.0'
 
-gem 'rubocop', require: false
+gem 'rubocop', '~> 1.81', require: false
 
-gem 'rspec', require: false
+gem 'rspec', '~> 3.13', require: false
diff --git a/lib/microcms.rb b/lib/microcms.rb
index f302ffa..2bb49e2 100644
--- a/lib/microcms.rb
+++ b/lib/microcms.rb
@@ -128,7 +128,7 @@ def delete(endpoint, id)
 
     private
 
-    # rubocop:disable Style/MethodLength
+    # rubocop:disable-next Metrics/MethodLength
     def build_query(option)
       {
         draftKey: option[:draftKey],
@@ -142,7 +142,6 @@ def build_query(option)
         ids: option[:ids] ? option[:ids].join(',') : nil
       }.select { |_key, value| value }
     end
-    # rubocop:enable Style/MethodLength
 
     def put(endpoint, content, option = {})
       body = content.reject { |key, _value| key == :id }