diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index cec77f36..333c2e72 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -15,11 +15,19 @@ jobs:
         with:
           node-version: '22.12.0'
           cache: 'npm'
-      - uses: tj-actions/changed-files@v35
+      - name: changed files
         id: files
-        with:
-          files: data/*.csv
+        run: |
+          FILES=data/*.csv
+          ANY_CHANGED=false
+          ALL_CHANGED_FILES=$(git diff --name-only "${FILES}" | tr '\n' ' ')
+          if [ -n "${ALL_CHANGED_FILES}" ]; then
+            ANY_CHANGED=true
+          fi
+          echo "all_changed_files=$ALL_CHANGED_FILES" >> "$GITHUB_OUTPUT"
+          echo "any_changed=$ANY_CHANGED" >> "$GITHUB_OUTPUT"
       - name: install dependencies
+        if: steps.files.outputs.any_changed == 'true'
         run: npm install
       - name: validate
         if: steps.files.outputs.any_changed == 'true'