diff --git a/src/zona/cli.py b/src/zona/cli.py
index 8ba46b3..c1017ab 100644
--- a/src/zona/cli.py
+++ b/src/zona/cli.py
@@ -59,7 +59,9 @@ def build(
     """
     if draft:
         print("Option override: including drafts.")
-    builder = ZonaBuilder(cli_root=root, cli_output=output, draft=draft)
+    builder = ZonaBuilder(
+        cli_root=root, cli_output=output, draft=draft
+    )
     builder.build()
 
 
@@ -73,12 +75,16 @@ def serve(
     ] = None,
     host: Annotated[
         str,
-        typer.Option("--host", help="Hostname for live preview server."),
+        typer.Option(
+            "--host", help="Hostname for live preview server."
+        ),
     ] = "localhost",
     port: Annotated[
         int,
         typer.Option(
-            "--port", "-p", help="Port number for live preview server."
+            "--port",
+            "-p",
+            help="Port number for live preview server.",
         ),
     ] = 8000,
     output: Annotated[
diff --git a/src/zona/websockets.py b/src/zona/websockets.py
index 9049d40..2889af2 100644
--- a/src/zona/websockets.py
+++ b/src/zona/websockets.py
@@ -40,7 +40,9 @@ class WebSocketServer:
             asyncio.set_event_loop(self.loop)
             # start server
             ws_server = serve(
-                ws_handler=self._handler, host=self.host, port=self.port
+                ws_handler=self._handler,
+                host=self.host,
+                port=self.port,
             )
             # add server to event loop
             self.loop.run_until_complete(ws_server)