diff --git a/.gitea/workflows/pixel10.yml b/.gitea/workflows/pixel10.yml
index fcb9750b..8c9deda0 100644
--- a/.gitea/workflows/pixel10.yml
+++ b/.gitea/workflows/pixel10.yml
@@ -222,10 +222,13 @@ jobs:
           set -e
           exit "$build_status"
 
-      - uses: actions/upload-artifact@v4
+      # Gitea's artifact service implements the v3 protocol. The v4 action
+      # rejects non-GitHub servers with GHESNotSupportedError before upload.
+      - uses: actions/upload-artifact@v3
         with:
           name: mrbweblibre-pixel10
           path: apps/weblibre/build/app/outputs/flutter-apk/app-pixel10-release.apk
+          if-no-files-found: error
 
       - name: Remove release key
         if: always()