diff --git a/vhost-device-rng/Cargo.toml b/vhost-device-rng/Cargo.toml
index 81b9b06..0be18b9 100644
--- a/vhost-device-rng/Cargo.toml
+++ b/vhost-device-rng/Cargo.toml
@@ -32,3 +32,6 @@ vmm-sys-util = "0.14"
 assert_matches = "1.5"
 virtio-queue = { version = "0.16", features = ["test-utils"] }
 vm-memory = { version = "0.16", features = ["backend-mmap", "backend-atomic"] }
+
+[lints]
+workspace = true
diff --git a/vhost-device-rng/src/vhu_rng.rs b/vhost-device-rng/src/vhu_rng.rs
index b6ecabf..7dfa356 100644
--- a/vhost-device-rng/src/vhu_rng.rs
+++ b/vhost-device-rng/src/vhu_rng.rs
@@ -369,7 +369,7 @@ mod tests {
             };
 
             let desc = RawDescriptor::from(SplitDescriptor::new(
-                (0x100 * (i + 1)) as u64,
+                u64::from(0x100 * (i + 1)),
                 0x200,
                 desc_flags,
                 i + 1,
@@ -579,7 +579,7 @@ mod tests {
 
         assert_eq!(backend.queues_per_thread(), vec![0xffff_ffff]);
         assert_eq!(backend.get_config(0, 0), vec![]);
-        assert!(backend.update_memory(mem).is_ok());
+        backend.update_memory(mem).unwrap();
 
         backend.set_event_idx(true);
         assert!(backend.event_idx);