diff --git a/.github/workflows/nightly-check.yml b/.github/workflows/nightly-check.yml
index 9d948562..f35a232c 100644
--- a/.github/workflows/nightly-check.yml
+++ b/.github/workflows/nightly-check.yml
@@ -21,4 +21,4 @@ jobs:
       run: pixi run build
 
     - name: Run tox tests
-      run: pixi run tox
+      run: pixi run -e dev tox
diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 8659f132..9158390b 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -37,7 +37,7 @@ jobs:
       run: pixi run build
       
     - name: Run tests with tox
-      run: pixi run tox
+      run: pixi run -e dev tox
       
     - uses: actions/upload-artifact@v4
       with: