diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d293c15..704c1ca 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -50,7 +50,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Dependencies
       run: |
-        curl -sSL https://install.python-poetry.org | python -
+        curl -sSL https://install.python-poetry.org | python - --version 1.5.1
         poetry config virtualenvs.create false
         poetry install
     - name: Lint