diff --git a/main.py b/main.py
index 65041fb..45bf3c0 100644
--- a/main.py
+++ b/main.py
@@ -2,7 +2,7 @@ from itertools import count
 from netrc import netrc
 import os
 import io
-from typing import Union, Optional
+from typing import *
 from fastapi import FastAPI, File, UploadFile
 from pydantic import BaseModel
 from starlette.responses import FileResponse, JSONResponse
@@ -88,7 +88,7 @@ async def fastapi_add_junction(network: str, junction: str, x: float, y: float,
     return add_junction(network, junction, x, y, z)
 
 @app.get("/getjunctioncoord/")
-async def fastapi_get_junction_coord(network: str, junction: str) : dict[str, float]:
+async def fastapi_get_junction_coord(network: str, junction: str) -> dict[str, float]:
     return get_junction_coord(network, junction)
 
 @app.post("/addnode/")