diff --git a/.forgejo/workflows/build-with-app-image.yaml b/.forgejo/workflows/build-with-app-image.yaml
index 2e83328..7a72a1d 100644
--- a/.forgejo/workflows/build-with-app-image.yaml
+++ b/.forgejo/workflows/build-with-app-image.yaml
@@ -13,12 +13,16 @@ jobs:
         image: treetrail-database
     env:
       PYTHONPATH: /app/lib/python3.12/site-packages
+      UV_PROJECT_ENVIRONMENT: /app
     steps:
       - uses: actions/checkout@v4
 
       - name: Install dependencies (to uv's project environment)
         run: uv sync --locked --no-dev --no-editable
 
+      - name: Install dependencies for testing
+        run: uv pip install httpx
+
       - name: Echo env
         run: |
           echo '${{ toJSON(env) }}'