diff --git a/API/main.py b/API/main.py
index c2d9834..14302db 100755
--- a/API/main.py
+++ b/API/main.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 from deps.samplebase import SampleBase
 from rgbmatrix import graphics
+from typing import Optional
 from PIL import Image
 import requests
 
@@ -294,7 +295,7 @@ class Matrix(SampleBase):
 		self.image = Image.open(requests.get(url, stream=True).raw)
 
 	# display image at position with dimensions in current color
-	def display_image(self, x: int, y: int, w: int|None = None, h: int|None = None):
+	def display_image(self, x: int, y: int, w: Optional[int] = None, h: Optional[int] = None):
 		# resize image to specified or max size
 		self.image.resize((w or self.matrix.width, h or self.matrix.height), Image.ANTIALIAS)
 		# set image at position