diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index 3a742e3..ba91b41 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -17,7 +17,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r requirements.txt
-          pip install flake8
+          pip install poetry
+          poetry install
       - name: Check flake8
         run: python -m flake8 .