diff --git a/action.yaml b/action.yaml
index d0898f7..ff7a7e2 100644
--- a/action.yaml
+++ b/action.yaml
@@ -61,7 +61,7 @@ runs:
         python-version: ${{ steps.tool-versions.outputs.python }}
     - name: Set up Ruby at version specified in .tool-versions.
       if: steps.tool-versions.outputs.ruby != ''
-      uses: ruby/setup-ruby@v1.152.0
+      uses: ruby/setup-ruby@v1.156.0
       with:
         ruby-version: ${{ steps.tool-versions.outputs.ruby }}
     - name: Install asdf.