diff --git a/.github/workflows/htmlproofer.yml b/.github/workflows/htmlproofer.yml
index ccbfdb4d..c56b56ad 100644
--- a/.github/workflows/htmlproofer.yml
+++ b/.github/workflows/htmlproofer.yml
@@ -11,7 +11,7 @@ jobs:
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: '3.3'
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: vendor/bundle
           key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile') }}