diff --git a/tests/protocol/request_response.rs b/tests/protocol/request_response.rs
index 832353b3..d483a460 100644
--- a/tests/protocol/request_response.rs
+++ b/tests/protocol/request_response.rs
@@ -36,6 +36,7 @@ use litep2p::{
 use futures::{channel, StreamExt};
 use multiaddr::{Multiaddr, Protocol};
 use multihash::Multihash;
+use rand::Rng;
 use tokio::time::sleep;
 
 use std::{
@@ -2582,11 +2583,12 @@ async fn large_response(transport1: Transport, transport2: Transport) {
         }
     });
 
-	let response = vec![0; 15 * 1024 * 1024];
-
     let request_id =
         handle1.try_send_request(peer2, vec![1, 3, 3, 7], DialOptions::Reject).unwrap();
 
+    let mut rng = rand::thread_rng();
+    let response = (0..15 * 1024 * 1024).map(|_| rng.gen::<u8>()).collect::<Vec<_>>();
+
     assert_eq!(
         handle2.next().await.unwrap(),
         RequestResponseEvent::RequestReceived {