diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index df56787..9533848 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -49,7 +49,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: docker/setup-buildx-action@v3
+      - uses: docker/setup-buildx-action@v4
 
       # Validate the production image builds (multi-stage, incl. npm ci --omit=dev).
       # Build only — no push. Layer cache via GitHub Actions cache.