diff --git a/.forgejo/workflows/build-docker.yaml b/.forgejo/workflows/build-docker.yaml
index 94b3744..7800e62 100644
--- a/.forgejo/workflows/build-docker.yaml
+++ b/.forgejo/workflows/build-docker.yaml
@@ -16,8 +16,8 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       - name: create-version-string
-        run: export ISO_SEEDER_TAG="$(git rev-parse --short HEAD)-$(date --utc --iso-8601)"
-      - run: echo $ISO_SEEDER_TAG
+        run: $(git rev-parse --short HEAD)-$(date --utc --iso-8601) >> $FORGEJO_OUTPUTS
+      - run: echo ${{ steps.create-version-string.outputs }}
       - name: Build and push
         uses: docker/build-push-action@v6
         with: