diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 261906cc..fddc0ec3 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -67,7 +67,7 @@ repos:
         additional_dependencies:
           [
             "traitlets>=5.3",
-            "jupyter_server>=2.9",
+            "jupyter_server>=2.10",
             "openapi_core",
             "json5",
             "pytest",
diff --git a/jupyterlab_server/pytest_plugin.py b/jupyterlab_server/pytest_plugin.py
index 9d40a7ea..a9709f7e 100644
--- a/jupyterlab_server/pytest_plugin.py
+++ b/jupyterlab_server/pytest_plugin.py
@@ -143,6 +143,6 @@ def labserverapp(
 ) -> LabServerApp:
     """A lab server app."""
     app = make_labserver_extension_app()
-    app._link_jupyter_server_extension(jp_serverapp)  # type:ignore[no-untyped-call]
+    app._link_jupyter_server_extension(jp_serverapp)
     app.initialize()  # type:ignore[no-untyped-call]
     return app
diff --git a/jupyterlab_server/settings_utils.py b/jupyterlab_server/settings_utils.py
index dca2885b..1570ff0f 100644
--- a/jupyterlab_server/settings_utils.py
+++ b/jupyterlab_server/settings_utils.py
@@ -92,8 +92,8 @@ def _get_user_settings(settings_dir: str, schema_name: str, schema: Any) -> dict
 
     if os.path.exists(path):
         stat = os.stat(path)
-        last_modified = tz.utcfromtimestamp(stat.st_mtime).isoformat()
-        created = tz.utcfromtimestamp(stat.st_ctime).isoformat()
+        last_modified = tz.utcfromtimestamp(stat.st_mtime).isoformat()  # type:ignore[no-untyped-call]
+        created = tz.utcfromtimestamp(stat.st_ctime).isoformat()  # type:ignore[no-untyped-call]
         with open(path, encoding="utf-8") as fid:
             try:  # to load and parse the settings file.
                 raw = fid.read() or raw
diff --git a/jupyterlab_server/workspaces_handler.py b/jupyterlab_server/workspaces_handler.py
index 301ba761..a42ce909 100644
--- a/jupyterlab_server/workspaces_handler.py
+++ b/jupyterlab_server/workspaces_handler.py
@@ -57,8 +57,8 @@ def _load_with_file_times(workspace_path: Path) -> dict:
     with workspace_path.open(encoding="utf-8") as fid:
         workspace = json.load(fid)
         workspace["metadata"].update(
-            last_modified=tz.utcfromtimestamp(stat.st_mtime).isoformat(),
-            created=tz.utcfromtimestamp(stat.st_ctime).isoformat(),
+            last_modified=tz.utcfromtimestamp(stat.st_mtime).isoformat(),  # type:ignore[no-untyped-call]
+            created=tz.utcfromtimestamp(stat.st_ctime).isoformat(),  # type:ignore[no-untyped-call]
         )
     return workspace