diff --git a/.gitea/workflows/build-and-publish.yaml b/.gitea/workflows/build-and-publish.yaml
index 4970b25..f183a03 100644
--- a/.gitea/workflows/build-and-publish.yaml
+++ b/.gitea/workflows/build-and-publish.yaml
@@ -13,7 +13,7 @@ jobs:
         uses: actions/checkout@v4
       - name: build image
         run: |
-          echo "SHORT_SHA=${GITEA_SHA::7}" >> $GITEA_ENV
+          export "SHORT_SHA=${GITEA_SHA::7}"
           docker buildx build --platform linux/amd64 \
           -t git.gractwo.pl/gractwo/arche:latest \
           -t git.gractwo.pl/gractwo/arche:$SHORT_SHA \