diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0452fc340..493d25de6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,6 +25,7 @@ jobs:
       - name: "Install dependencies"
         run: |
           python -m pip install --upgrade pip poetry
+          poetry install
       - name: "Code formating (black)"
         run: |
           poetry run pre-commit run black --all-files