diff --git a/.github/workflows/build-backend.yaml b/.github/workflows/build-backend.yaml
index 812016a..a140fb2 100644
--- a/.github/workflows/build-backend.yaml
+++ b/.github/workflows/build-backend.yaml
@@ -3,10 +3,9 @@ name: Create and publish a Backend Docker image
 on:
 
   push:
-    branches:
-      - master
-
-  pull_request:
+    branches: [master]
+    paths:
+      - "backend/**"
 
 env:
   REGISTRY: ghcr.io
@@ -42,4 +41,4 @@ jobs:
           context: ./backend/
           push: true
           tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
\ No newline at end of file
+          labels: ${{ steps.meta.outputs.labels }}