diff --git a/.github/workflows/pythonapp.yaml b/.github/workflows/pythonapp.yaml
index 45f8e864..2f42ef9e 100644
--- a/.github/workflows/pythonapp.yaml
+++ b/.github/workflows/pythonapp.yaml
@@ -31,7 +31,7 @@ jobs:
           cache: poetry
       - name: Install tox
         run: |
-          python -m pip install --upgrade tox tox-gh-actions
+          python -m pip install --upgrade tox tox-gh-actions tox-poetry-installer[poetry]
       - name: Lint with flake8
         run: |
           pip install flake8
diff --git a/tox.ini b/tox.ini
index cf75560f..2d7ad4e0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -11,20 +11,17 @@ python =
     3.10: py310
 
 [testenv:mypy]
-whitelist_externals = poetry
 commands =
-    poetry install -v
-    poetry run mypy .
+    mypy .
 
 [testenv:duckdb_master]
-whitelist_externals = poetry
-commands =
-    poetry install -v
-    poetry run pip install duckdb --pre -U
-    poetry run pytest --junitxml=results.xml --cov --cov-report xml:coverage.xml --verbose -rs
+deps =
+    duckdb
 
 [testenv]
-whitelist_externals = poetry
 commands =
-    poetry install -v
-    poetry run pytest --junitxml=results.xml --cov --cov-report xml:coverage.xml --verbose -rs
+    pytest --junitxml=results.xml --cov --cov-report xml:coverage.xml --verbose -rs
+install_dev_deps = True
+require_poetry = True
+passenv = HOME
+install_command = pip install --pre -U {opts} {packages}