diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 57b4105..194a8d6 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -21,6 +21,7 @@ jobs:
 
       - name: Install poetry
         run: |
+          python -m pip install --upgrade pip
           curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python -
           source $HOME/.poetry/env
           poetry --version