diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2ce4f99..e006fe1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -38,6 +38,7 @@ jobs:
           python -m pip install --upgrade pip
           pip install flake8 pytest pytest-mock pytest-cov mypy types-protobuf
           pip install --use-pep517 -r requirements.txt
+          pip install --no-deps .
       - name: Lint with flake8
         run: |
           # stop the build if there are Python syntax errors or undefined names