diff --git a/example/src/BarcodeScanner.tsx b/example/src/BarcodeScanner.tsx
index 09ed742..224048c 100644
--- a/example/src/BarcodeScanner.tsx
+++ b/example/src/BarcodeScanner.tsx
@@ -7,6 +7,7 @@ export const BarcodeScanner: React.FC<{}> = () => {
   const [paused, setPaused] = useState(false);
 
   const {
+    isDecoding,
     ref,
     torch: {
       on: torchOn,
@@ -36,6 +37,7 @@ export const BarcodeScanner: React.FC<{}> = () => {
         <span>Last result:</span>
         <span>{result}</span>
       </p>
+      <p>isDecoding ? {isDecoding ? "yes" : "no"}</p>
       <div>
         <button onClick={() => setPaused(!paused)}>
           {paused ? "Resume" : "Pause"}
diff --git a/example/yarn.lock b/example/yarn.lock
index ff3949e..1f8f91f 100644
--- a/example/yarn.lock
+++ b/example/yarn.lock
@@ -807,12 +807,12 @@
   resolved "https://registry.yarnpkg.com/@types/scheduler/-/scheduler-0.16.2.tgz#1a62f89525723dde24ba1b01b092bf5df8ad4d39"
   integrity sha512-hppQEBDmlwhFAXKJX2KnWLYu5yMfi91yazPb2l+lbJiwW+wdo1gNeRA+3RgNSO39WYX2euey41KEwnqesU2Jew==
 
-"@zxing/library@^0.19.2":
-  version "0.19.2"
-  resolved "https://registry.yarnpkg.com/@zxing/library/-/library-0.19.2.tgz#d5c35f3741121952d73231f986becfdcb5e24de1"
-  integrity sha512-0aCQIbGXsDHcBuRYuZRZfJeLRYiPfdLxIlh5bY7k+k2bkxFwzla+75VyFi1rnjU5hqaZogdSH+Dw013YDsQOjg==
+"@zxing/library@^0.20.0":
+  version "0.20.0"
+  resolved "https://registry.yarnpkg.com/@zxing/library/-/library-0.20.0.tgz#11bc411b87693015389555c589da61532879be7b"
+  integrity sha512-6Ev6rcqVjMakZFIDvbUf0dtpPGeZMTfyxYg4HkVWioWeN7cRcnUWT3bU6sdohc82O1nPXcjq6WiGfXX2Pnit6A==
   dependencies:
-    ts-custom-error "^3.0.0"
+    ts-custom-error "^3.2.1"
   optionalDependencies:
     "@zxing/text-encoding" "~0.9.0"
 
@@ -1439,10 +1439,10 @@ timsort@^0.3.0:
   resolved "https://registry.yarnpkg.com/timsort/-/timsort-0.3.0.tgz#405411a8e7e6339fe64db9a234de11dc31e02bd4"
   integrity sha512-qsdtZH+vMoCARQtyod4imc2nIJwg9Cc7lPRrw9CzF8ZKR0khdr8+2nX80PBhET3tcyTtJDxAffGh2rXH4tyU8A==
 
-ts-custom-error@^3.0.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/ts-custom-error/-/ts-custom-error-3.2.0.tgz#ff8f80a3812bab9dc448536312da52dce1b720fb"
-  integrity sha512-cBvC2QjtvJ9JfWLvstVnI45Y46Y5dMxIaG1TDMGAD/R87hpvqFL+7LhvUDhnRCfOnx/xitollFWWvUKKKhbN0A==
+ts-custom-error@^3.2.1:
+  version "3.3.1"
+  resolved "https://registry.yarnpkg.com/ts-custom-error/-/ts-custom-error-3.3.1.tgz#8bd3c8fc6b8dc8e1cb329267c45200f1e17a65d1"
+  integrity sha512-5OX1tzOjxWEgsr/YEUWSuPrQ00deKLh6D7OTWcvNHm12/7QPyRh8SYpyWvA4IZv8H/+GQWQEh/kwo95Q9OVW1A==
 
 tslib@^2.4.0:
   version "2.4.0"
diff --git a/src/useZxing.ts b/src/useZxing.ts
index dd4a4f2..4351e2c 100644
--- a/src/useZxing.ts
+++ b/src/useZxing.ts
@@ -42,6 +42,7 @@ export const useZxing = (
   const [constraints, setConstraints] = useState(
     "constraints" in options ? options.constraints : undefined
   );
+  const [isDecoding, setIsDecoding] = useState(false);
   const decodeResultHandlerRef = useRef(onDecodeResult);
   const decodeErrorHandlerRef = useRef(onDecodeError);
   const errorHandlerRef = useRef(onError);
@@ -93,6 +94,7 @@ export const useZxing = (
     const mediaStream = ref.current.srcObject as MediaStream;
     const videoTrack = mediaStream.getVideoTracks()[0];
     if (videoTrack) torchInit(videoTrack);
+    setIsDecoding(true);
   }, [reader, deviceId, constraints, paused, decodeCallback, torchInit]);
 
   const stopDecoding = useCallback(() => {
@@ -125,10 +127,12 @@ export const useZxing = (
     startDecoding();
     return () => {
       stopDecoding();
+      setIsDecoding(false);
     };
   }, [startDecoding, stopDecoding]);
 
   return {
+    isDecoding,
     ref,
     torch,
   };