diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index b7e335e..a50607f 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -20,7 +20,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
       run: |
-        python -m pip install --upgrade pip
+        python -m pip install --upgrade pip flake8
         python setup.py develop
     - name: Style checks
       run: |