diff --git a/.github/workflows/citation-validation.yml b/.github/workflows/citation-validation.yml
index 51eafcd..2d8e81d 100644
--- a/.github/workflows/citation-validation.yml
+++ b/.github/workflows/citation-validation.yml
@@ -44,7 +44,7 @@ jobs:
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
 
       - name: Setup Ruby ${{ needs.get-ruby-version.outputs.version }}
-        uses: ruby/setup-ruby@32110d4e311bd8996b2a82bf2a43b714ccc91777  # v1.221.0
+        uses: ruby/setup-ruby@4ff6f3611a42bc75eee1e5138240eb1613f48c8f  # v1.266.0
         with:
           ruby-version: ${{ needs.get-ruby-version.outputs.version }}
 
diff --git a/.github/workflows/document-validation.yml b/.github/workflows/document-validation.yml
index 794b18a..8e4d813 100644
--- a/.github/workflows/document-validation.yml
+++ b/.github/workflows/document-validation.yml
@@ -58,7 +58,7 @@ jobs:
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
 
       - name: Setup Ruby ${{ needs.get-ruby-version.outputs.version }}
-        uses: ruby/setup-ruby@32110d4e311bd8996b2a82bf2a43b714ccc91777 # v1.221.0
+        uses: ruby/setup-ruby@4ff6f3611a42bc75eee1e5138240eb1613f48c8f # v1.266.0
         with:
           ruby-version: ${{ needs.get-ruby-version.outputs.version }}