diff --git a/content/tokio/tutorial/shared-state.md b/content/tokio/tutorial/shared-state.md
index 771564c1..c44d9dc1 100644
--- a/content/tokio/tutorial/shared-state.md
+++ b/content/tokio/tutorial/shared-state.md
@@ -345,7 +345,7 @@ introduce `N` distinct instances.
 ```rust
 # use std::collections::HashMap;
 # use std::sync::{Arc, Mutex};
-type ShardedDb = Arc<Vec<Mutex<HashMap<String, Vec<u8>>>>>;
+type ShardedDb = Arc<Vec<Mutex<HashMap<String, Bytes>>>>;
 
 fn new_sharded_db(num_shards: usize) -> ShardedDb {
     let mut db = Vec::with_capacity(num_shards);