diff --git a/.github/workflows/pr_tests.yml b/.github/workflows/pr_tests.yml
index 9278017..4ee3107 100644
--- a/.github/workflows/pr_tests.yml
+++ b/.github/workflows/pr_tests.yml
@@ -17,7 +17,7 @@ jobs:
       - name: "Install Ruby"
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 4.0.0
+          ruby-version: 4.0.1
           bundler-cache: true
       - run: bundle exec rake rubocop
 
diff --git a/.github/workflows/tag_deploy_rubygem.yml b/.github/workflows/tag_deploy_rubygem.yml
index d47a3bf..aba5e95 100644
--- a/.github/workflows/tag_deploy_rubygem.yml
+++ b/.github/workflows/tag_deploy_rubygem.yml
@@ -92,7 +92,7 @@ jobs:
           echo "release_command=$GEM_RELEASE_COMMAND" | tee -a "$GITHUB_OUTPUT"
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 4.0.0
+          ruby-version: 4.0.1
           bundler-cache: true
       - name: Test build the package
         run: "${{ steps.commands.outputs.build_command }}"
@@ -187,7 +187,7 @@ jobs:
           clean: true
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 4.0.0
+          ruby-version: 4.0.1
           bundler-cache: true
       - name: Build RubyGem
         run: |