diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 42c99cb2f..f659600a8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -56,7 +56,7 @@ jobs:
       - name: Run tests
         run: |
           export C_INCLUDE_PATH=$pythonLocation/include/python${{ steps.python-selector.outputs.python-version }}:$C_INCLUDE_PATH
-          pytest --cov-report term-missing:skip-covered
+          pytest -n logical --dist worksteal --cov-report term-missing:skip-covered
 
       - name: Save test results and coverage
         uses: actions/upload-artifact@v4
diff --git a/pytest.ini b/pytest.ini
index 6983f0058..0dec21a22 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -28,6 +28,7 @@ required_plugins =
     pytest-mock
     pytest-html
     pytest-cov
+    pytest-xdist
 
 junit_logging = out-err
 
diff --git a/requirements.txt b/requirements.txt
index d946292e5..cf376d3c8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,6 +35,8 @@ pybids==0.16.*
 pyparsing==3.0.*
 PySocks==1.7.*
 pytest==7.2.*
+pytest-xdist==3.6.*
+pytest-xdist[psutil]==3.6.*
 pytest-console-scripts==1.3.*
 pytest-cov==4.1.0
 pytest-html==4.1.1
diff --git a/scilpy/tractograms/tests/test_streamline_and_mask_operations.py b/scilpy/tractograms/tests/test_streamline_and_mask_operations.py
index 772c41a6a..6127a586a 100644
--- a/scilpy/tractograms/tests/test_streamline_and_mask_operations.py
+++ b/scilpy/tractograms/tests/test_streamline_and_mask_operations.py
@@ -92,7 +92,7 @@ def test_get_endpoints_density_map_five_points():
 
     result = nib.load(in_result).get_fdata()
 
-    assert np.allclose(endpoints_map, result)
+    assert np.allclose(endpoints_map, result, rtol=1e-03)
 
 
 def test_get_head_tail_density_maps():
diff --git a/scripts/scil_connectivity_compute_simple_matrix.py b/scripts/scil_connectivity_compute_simple_matrix.py
old mode 100644
new mode 100755
diff --git a/scripts/scil_fibertube_score_tractogram.py b/scripts/scil_fibertube_score_tractogram.py
old mode 100644
new mode 100755
diff --git a/scripts/scil_fibertube_tracking.py b/scripts/scil_fibertube_tracking.py
old mode 100644
new mode 100755
diff --git a/scripts/scil_tractogram_filter_collisions.py b/scripts/scil_tractogram_filter_collisions.py
old mode 100644
new mode 100755
diff --git a/scripts/scil_viz_tractogram_collisions.py b/scripts/scil_viz_tractogram_collisions.py
old mode 100644
new mode 100755
diff --git a/scripts/tests/test_aodf_metrics.py b/scripts/tests/test_aodf_metrics.py
index a242e060b..54a94655d 100644
--- a/scripts/tests/test_aodf_metrics.py
+++ b/scripts/tests/test_aodf_metrics.py
@@ -73,5 +73,5 @@ def test_execution_symmetric_input(script_runner, monkeypatch):
     ret = script_runner.run('scil_aodf_metrics.py', in_fodf,
                             '--sphere', 'repulsion100', '--not_all',
                             '--nufid', 'nufid.nii.gz',
-                            '--processes', '4')
+                            '--processes', '1')
     assert not ret.success