diff --git a/tests/conftest.py b/tests/conftest.py
index 5bc9dcf..f8d7229 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -85,7 +85,7 @@ def pytest_collection_modifyitems(session, config, items) -> None:  # noqa: ARG0
 
 
 skip_if_deadlock = pytest.mark.skipif(
-    (sys.version_info[:2] in [(3, 12), (3, 13)] and sys.platform == "win32")
+    (sys.version_info[:2] in [(3, 12), (3, 13), (3, 14)] and sys.platform == "win32")
     or (sys.version_info[:2] == (3, 13) and sys.platform == "linux"),
     reason="Deadlock in loky/backend/resource_tracker.py, line 181, maybe related to https://github.com/joblib/loky/pull/450",
 )
diff --git a/tests/test_jupyter/test_functional_interface.ipynb b/tests/test_jupyter/test_functional_interface.ipynb
index a4506c7..96da45c 100644
--- a/tests/test_jupyter/test_functional_interface.ipynb
+++ b/tests/test_jupyter/test_functional_interface.ipynb
@@ -44,7 +44,9 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "session = pytask.build(tasks=[create_file, create_text], n_workers=2)\n",
+    "session = pytask.build(\n",
+    "    tasks=[create_file, create_text], n_workers=2, parallel_backend=\"processes\"\n",
+    ")\n",
     "assert session.exit_code == ExitCode.OK"
    ]
   }
diff --git a/tests/test_jupyter/test_functional_interface_w_relative_path.ipynb b/tests/test_jupyter/test_functional_interface_w_relative_path.ipynb
index a09b40d..4d000ea 100644
--- a/tests/test_jupyter/test_functional_interface_w_relative_path.ipynb
+++ b/tests/test_jupyter/test_functional_interface_w_relative_path.ipynb
@@ -44,7 +44,9 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "session = pytask.build(tasks=[create_file, create_text], n_workers=2)\n",
+    "session = pytask.build(\n",
+    "    tasks=[create_file, create_text], n_workers=2, parallel_backend=\"processes\"\n",
+    ")\n",
     "assert session.exit_code == ExitCode.OK"
    ]
   }