diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index efbd0c6ba4..229a874c02 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -223,13 +223,13 @@ jobs:
             if [ ${{ matrix.os }} == 'ubuntu-latest' ]; then
               echo 'TOX_EXTRA_ARG=--installpkg dist/${{ steps.wheel.outputs.wheel_name }} -x testenv.deps+="-e dpf-standalone/v${{inputs.ANSYS_VERSION}}" -x testenv.commands_pre+="uv pip install --extra-index-url https://wheels.vtk.org vtk-osmesa==9.2.20230527.dev0"' >> "$GITHUB_OUTPUT"
             else
-              echo 'TOX_EXTRA_ARG=--installpkg dist/${{ steps.wheel.outputs.wheel_name }} -x testenv.deps+="-e dpf-standalone/v${{inputs.ANSYS_VERSION}}" -- -n auto' >> "$GITHUB_OUTPUT"
+              echo 'TOX_EXTRA_ARG=--installpkg dist/${{ steps.wheel.outputs.wheel_name }} -x testenv.deps+="-e dpf-standalone/v${{inputs.ANSYS_VERSION}}"' >> "$GITHUB_OUTPUT"
             fi
           else
             if [ ${{ matrix.os }} == 'ubuntu-latest' ]; then
               echo 'TOX_EXTRA_ARG=--installpkg dist/${{ steps.wheel.outputs.wheel_name }} -x testenv.commands_pre+="uv pip install --extra-index-url https://wheels.vtk.org vtk-osmesa==9.2.20230527.dev0"' >> "$GITHUB_OUTPUT"
             else
-              echo 'TOX_EXTRA_ARG=--installpkg dist/${{ steps.wheel.outputs.wheel_name }} -- -n auto' >> "$GITHUB_OUTPUT"
+              echo 'TOX_EXTRA_ARG=--installpkg dist/${{ steps.wheel.outputs.wheel_name }}' >> "$GITHUB_OUTPUT"
             fi
           fi
 
diff --git a/tox.ini b/tox.ini
index d7755b7d92..48cfcd2966 100644
--- a/tox.ini
+++ b/tox.ini
@@ -51,7 +51,6 @@ pass_env =
 
 deps = 
     -r requirements/requirements_test.txt
-    pytest-xdist
 
 [testenv:build-wheel]
 description = Environment for custom build of package wheels