diff --git a/tests/test_ui.py b/tests/test_ui.py
index 6af71d3..fc0254e 100644
--- a/tests/test_ui.py
+++ b/tests/test_ui.py
@@ -33,8 +33,7 @@ def test_component(page, port, tmpdir, save_screenshots):
 
     page.set_viewport_size({"width": 1920, "height": 1080})
     expect(page.get_by_role("link", name="Tree Sequence")).to_be_visible()
-    # needs tskit 0.5.9
-    # expect(page.get_by_role("cell", name="Provenance Timestamp")).to_be_visible()
+    expect(page.get_by_role("cell", name="Provenance Timestamp")).to_be_visible()
     if save_screenshots:
         page.screenshot(path="overview.png")
 
diff --git a/tsbrowse/__main__.py b/tsbrowse/__main__.py
index fd98574..4ffa1fd 100644
--- a/tsbrowse/__main__.py
+++ b/tsbrowse/__main__.py
@@ -75,7 +75,7 @@ def serve(path, port, show, log_level, no_log_filter, annotations_file):
 
     logger.info("Starting panel server")
     app_ = app.App(tsm)
-    pn.serve(app_.view(), port=port, show=show, verbose=False)
+    pn.serve(app_.view, port=port, show=show, verbose=False)
 
 
 @cli.command()
diff --git a/tsbrowse/app.py b/tsbrowse/app.py
index d5fdd4f..85d6d8b 100644
--- a/tsbrowse/app.py
+++ b/tsbrowse/app.py
@@ -11,9 +11,6 @@
 logger = daiquiri.getLogger("tsbrowse")
 
 RAW_CSS = """
-        .sidenav#sidebar {
-            background-color: #15E3AC;
-        }
         .title {
             font-size: var(--type-ramp-plus-2-font-size);
         }