diff --git a/.github/workflows/backend-container.yml b/.github/workflows/backend-container.yml
index 02cdcb37..ac69eadd 100644
--- a/.github/workflows/backend-container.yml
+++ b/.github/workflows/backend-container.yml
@@ -130,7 +130,7 @@ jobs:
 
       - name: Build and publish immutable image
         id: build
-        uses: docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6
+        uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7.3.0
         with:
           context: backend/ktor
           file: backend/ktor/Dockerfile