diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5bd616b..2f7ed1f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -31,17 +31,17 @@ jobs:
         run: |
           changed=$(ct list-changed --config config.yaml)
           if [[ -n "$changed" ]]; then
-            echo "changed=true" >> $GITHUB_OUTPUT
+            echo "changed=true" >> "$GITHUB_OUTPUT"
           fi
 
   test:
     name: Test
-    if: needs.prepare.outputs.changed == 'true'
     needs:
       - prepare
     uses: ./.github/workflows/test.yml
     with:
       action-matrix: '["lint", "install", "install --upgrade"]'
+      contains-changes: ${{ needs.prepare.outputs.changed == 'true' }}
 
   release:
     name: Release
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index cd8898f..231d097 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,11 +11,17 @@ on:
         default: '["install"]'
         type: string
         description: Matrix of actions to run
+      contains-changes:
+        required: false
+        default: true
+        type: boolean
+        description: The ref contains changes requiring tests
 
 jobs:
   ct:
     name: Run chart-testing
     runs-on: ubuntu-latest
+    if: inputs.contains-changes
     strategy:
       fail-fast: false
       matrix: