diff --git a/distributed/tests/test_jupyter.py b/distributed/tests/test_jupyter.py
index 1d195494c6..ca25310105 100644
--- a/distributed/tests/test_jupyter.py
+++ b/distributed/tests/test_jupyter.py
@@ -56,7 +56,6 @@ def test_jupyter_cli(loop):
             "--host",
             f"127.0.0.1:{port}",
         ],
-        capture_output=True,
     ):
         with Client(f"127.0.0.1:{port}", loop=loop):
             response = requests.get("http://127.0.0.1:8787/jupyter/api/status")
diff --git a/distributed/utils_test.py b/distributed/utils_test.py
index 334f1eced4..30bb383403 100644
--- a/distributed/utils_test.py
+++ b/distributed/utils_test.py
@@ -1138,8 +1138,8 @@ def _terminate_process(proc: subprocess.Popen, terminate_timeout: float) -> None
 def popen(
     args: list[str],
     capture_output: bool = False,
-    terminate_timeout: float = 30,
-    kill_timeout: float = 10,
+    terminate_timeout: float = 10,
+    kill_timeout: float = 5,
     **kwargs: Any,
 ) -> Iterator[subprocess.Popen[bytes]]:
     """Start a shell command in a subprocess.