diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 0821d61..46f86ea 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -1,6 +1,6 @@
 {
   "name": "microcms-ruby-sdk",
-  "image": "ghcr.io/rails/devcontainer/images/ruby:4.0.6",
+  "image": "ghcr.io/rails/devcontainer/images/ruby:4.0.9",
   "postCreateCommand": "bin/setup",
   "customizations": {
     "vscode": {
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0f80f5c..1c16472 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
           persist-credentials: false
 
       - name: Setup Ruby and install gems
-        uses: ruby/setup-ruby@651ff0d62c5c79bed6d53ec518387aae20e72c1a # v1.329.0
+        uses: ruby/setup-ruby@26e5b7d197ebf60545ee9667bcbace0be11ccaec # v1.334.0
         with:
           bundler-cache: true
 
@@ -35,7 +35,7 @@ jobs:
         persist-credentials: false
 
     - name: Set up Ruby
-      uses: ruby/setup-ruby@651ff0d62c5c79bed6d53ec518387aae20e72c1a # v1.329.0
+      uses: ruby/setup-ruby@26e5b7d197ebf60545ee9667bcbace0be11ccaec # v1.334.0
       with:
         ruby-version: ${{ matrix.ruby-version }}
         bundler-cache: true
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index f69fa59..a46d3e4 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -18,7 +18,7 @@ jobs:
       with:
         persist-credentials: false
     - name: Set up Ruby
-      uses: ruby/setup-ruby@651ff0d62c5c79bed6d53ec518387aae20e72c1a # v1.329.0
+      uses: ruby/setup-ruby@26e5b7d197ebf60545ee9667bcbace0be11ccaec # v1.334.0
       with:
         bundler-cache: false
     
diff --git a/.ruby-version b/.ruby-version
index d13e837..7919852 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-4.0.6
+4.0.9
diff --git a/Gemfile b/Gemfile
index 5f9b237..185c07d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,6 +7,6 @@ gemspec
 
 gem 'rake', '~> 13.4'
 
-gem 'rubocop', '~> 1.90', require: false
+gem 'rubocop', '~> 1.92', require: false
 
 gem 'rspec', '~> 3.13', require: false