diff --git a/.github/workflows/deploy-preview.yml b/.github/workflows/deploy-preview.yml
index 7c24a2c..53f1153 100644
--- a/.github/workflows/deploy-preview.yml
+++ b/.github/workflows/deploy-preview.yml
@@ -43,9 +43,25 @@ jobs:
           name: build
           path: build
 
+  changes:
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: read
+    outputs:
+      src: ${{ steps.filter.outputs.src }}
+    steps:
+        # For pull requests it's not necessary to checkout the code
+        - uses: dorny/paths-filter@v3
+          id: filter
+          with:
+            filters: |
+              src:
+                - 'src/**'
+
   deploy-preview:
-    needs: build
+    needs: [build, changes]
     runs-on: ubuntu-latest
+    if: ${{ needs.changes.outputs.src == 'true' }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -61,4 +77,4 @@ jobs:
           repoToken: ${{ secrets.GITHUB_TOKEN }}
           firebaseServiceAccount: ${{ secrets.FIREBASE_SERVICE_ACCOUNT_ARS_ANTIQUA }}
           projectId: ars-antiqua
-          channelId: "preview"
\ No newline at end of file
+          channelId: "preview"