diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 1154332..2ee1817 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -28,7 +28,7 @@ jobs:
         with:
           fetch-depth: 0 # need full history to get page last modified times
       - name: Setup Ruby
-        uses: ruby/setup-ruby@78c01b705fd9d5ad960d432d3a0cfa341d50e410 # v1.179.1
+        uses: ruby/setup-ruby@ff740bc00a01b3a50fffc55a1071b1060eeae9dc # v1.180.0
         with:
           ruby-version: '3.1'
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically