diff --git a/label-resolver/action.yaml b/label-resolver/action.yaml
index c31d742..d26a1fa 100644
--- a/label-resolver/action.yaml
+++ b/label-resolver/action.yaml
@@ -54,7 +54,7 @@ runs:
     - name: Setup Ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: '3.4.8'
+        ruby-version: '4.0.1'
         bundler-cache: true
         working-directory: deploy-actions/action-scripts