diff --git a/.github/workflows/dev.yml b/.github/workflows/dev.yml
index fcba045..490adce 100644
--- a/.github/workflows/dev.yml
+++ b/.github/workflows/dev.yml
@@ -37,7 +37,7 @@ jobs:
           python -m pip install --upgrade pip
           pip install poetry tox tox-gh-actions
           pip install pytest black isort mypy flake8 flake8-docstrings pytest-cov pandas
-          pip install .
+          pip install -e .
 
       - name: test with tox
         run: