diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dd2c33a..784838b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,6 +26,12 @@ jobs:
         uses: actions/checkout@v3.1.0
         with:
           fetch-depth: 1
+      - name: Install Tidy Ubuntu
+        if: matrix.os == 'ubuntu-latest'
+        run: sudo apt install -y tidy
+      - name: Install Tidy Mac
+        if: matrix.os == 'macos-latest'
+        run: brew install tidy  
       - name: set up R
         uses: r-lib/actions/setup-r@v2
         with:
diff --git a/.github/workflows/smoke-tests.yaml b/.github/workflows/smoke-tests.yaml
index d22e3cd..9f2f608 100644
--- a/.github/workflows/smoke-tests.yaml
+++ b/.github/workflows/smoke-tests.yaml
@@ -18,6 +18,8 @@ jobs:
         uses: actions/checkout@v3.1.0
         with:
           fetch-depth: 1
+      - name: Install Tidy
+        run: sudo apt install -y tidy 
       - name: set up R
         shell: bash
         run: |