diff --git a/packages/rrweb/src/replay/canvas/2d.ts b/packages/rrweb/src/replay/canvas/2d.ts
index 0d85e8ca70..2b95d0c35a 100644
--- a/packages/rrweb/src/replay/canvas/2d.ts
+++ b/packages/rrweb/src/replay/canvas/2d.ts
@@ -28,7 +28,7 @@ export default async function canvasMutation({
       return Promise.all(mutation.args.map(deserializeArg(imageMap, ctx)));
     },
   );
-  const args = await Promise.all<unknown>(mutationArgsPromises);
+  const args: unknown[][] = await Promise.all(mutationArgsPromises);
   // step 2 apply all mutations
   args.forEach((args, index) => {
     const mutation = mutations[index];