diff --git a/src/BarcodeScannerComponent.tsx b/src/BarcodeScannerComponent.tsx
index 609ad6c..64b97be 100644
--- a/src/BarcodeScannerComponent.tsx
+++ b/src/BarcodeScannerComponent.tsx
@@ -7,8 +7,8 @@ const BarcodeScannerComponent = ({
   height,
   onUpdate
 }: {
-  width: number;
-  height: number;
+  width: number | string;
+  height: number | string;
   onUpdate: (arg0: unknown, arg1?: Result) => void;
 }): React.ReactElement => {
   const webcamRef = React.useRef(null)
@@ -30,7 +30,7 @@ const BarcodeScannerComponent = ({
 
   React.useEffect(() => {
     setInterval(capture, 100)
-  }, []);
+  }, [])
 
   return (
     <Webcam