diff --git a/.github/workflows/renderNotebooks.yaml b/.github/workflows/renderNotebooks.yaml
index da1b4ec..15fbae9 100644
--- a/.github/workflows/renderNotebooks.yaml
+++ b/.github/workflows/renderNotebooks.yaml
@@ -50,21 +50,19 @@ jobs:
 
       - name: Check for changed R Markdown files
         id: check_rmd_files
-        run: |
-          CHANGED_RMD_FILES=$(git diff --name-only HEAD^ HEAD -- '*.Rmd' '*.rmd')
-          if [ -n "$CHANGED_RMD_FILES" ]; then
-            echo "Changed R Markdown files:"
-            echo "$CHANGED_RMD_FILES"
-            echo "::set-output name=has_changed::true"
-            echo "$CHANGED_RMD_FILES" > changed_rmd_files.txt
-          else
-            echo "No changed R Markdown files found."
-            echo "::set-output name=has_changed::false"
-          fi
-        
+        uses: tj-actions/changed-files@v45
+        with:
+          files_yaml: |
+            Rmd:
+              - '**.Rmd'
+              - '**.rmd'
+
+         
       - name: Run Docker container to compile changed R Markdown files
-        if: steps.check_rmd_files.outputs.has_changed == 'true'
+        if: steps.check_rmd_files.outputs.test_any_changed == 'true'
         uses: addnab/docker-run-action@v3
+        env:
+          CHANGED_RMD_FILES: ${{ steps.check_rmd_files.outputs.test_all_changed_files }}
         with:
           image: bcgsc/long-pog-rmd:${{ steps.meta_rmd.outputs.tags }}
           options: |