diff --git a/crates/librqbit/Cargo.toml b/crates/librqbit/Cargo.toml
index 5f43844..6fec66f 100644
--- a/crates/librqbit/Cargo.toml
+++ b/crates/librqbit/Cargo.toml
@@ -76,3 +76,4 @@ futures = {version = "0.3"}
 tracing-subscriber = "0.3"
 tokio-test = "0.4"
 tempfile = "3"
+rand = {version = "0.8", features = ["small_rng"]}
diff --git a/crates/librqbit/src/tests/test_util.rs b/crates/librqbit/src/tests/test_util.rs
index e72780a..aac8af0 100644
--- a/crates/librqbit/src/tests/test_util.rs
+++ b/crates/librqbit/src/tests/test_util.rs
@@ -1,7 +1,7 @@
 use std::{io::Write, path::Path};
 
 use librqbit_core::Id20;
-use rand::RngCore;
+use rand::{RngCore, SeedableRng};
 use tempfile::TempDir;
 
 pub fn create_new_file_with_random_content(path: &Path, mut size: usize) {
@@ -14,7 +14,7 @@ pub fn create_new_file_with_random_content(path: &Path, mut size: usize) {
     eprintln!("creating temp file {:?}", path);
 
     const BUF_SIZE: usize = 8192 * 16;
-    let mut rng = rand::rngs::OsRng;
+    let mut rng = rand::rngs::SmallRng::from_entropy();
     let mut write_buf = [0; BUF_SIZE];
     while size > 0 {
         rng.fill_bytes(&mut write_buf[..]);