diff --git a/main.py b/main.py
index 2c4d8ef..d47d7bb 100644
--- a/main.py
+++ b/main.py
@@ -40,7 +40,7 @@ app = FastAPI(
 )
 
 
-async def get_fingerprint() -> Optional[str]:
+async def get_fingerprint():
     page = await browser.new_page()
     try:
         fingerprint_future = asyncio.Future()
@@ -91,4 +91,3 @@ async def get_fingerprint_endpoint():
 if __name__ == "__main__":
     import uvicorn
     uvicorn.run(app, host="0.0.0.0", port=8000)
-