diff --git a/foyer-memory/fuzz/Cargo.toml b/foyer-memory/fuzz/Cargo.toml
index da46b5ee..206453d6 100644
--- a/foyer-memory/fuzz/Cargo.toml
+++ b/foyer-memory/fuzz/Cargo.toml
@@ -6,10 +6,10 @@ edition = "2021"
 
 [dependencies]
 ahash = "0.8"
+arbitrary = { version = "1", features = ["derive"] }
 foyer-memory = { path = ".." }
 foyer-workspace-hack = { version = "0.4", path = "../../foyer-workspace-hack" }
 libfuzzer-sys = "0.4"
-arbitrary = { version = "1", features = ["derive"] }
 
 [package.metadata]
 cargo-fuzz = true
diff --git a/foyer-memory/fuzz/fuzz_targets/cache_fuzz.rs b/foyer-memory/fuzz/fuzz_targets/cache_fuzz.rs
index daf9988e..f3c47405 100644
--- a/foyer-memory/fuzz/fuzz_targets/cache_fuzz.rs
+++ b/foyer-memory/fuzz/fuzz_targets/cache_fuzz.rs
@@ -1,3 +1,17 @@
+//  Copyright 2024 Foyer Project Authors
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+
 #![no_main]
 
 use std::sync::Arc;
@@ -115,7 +129,7 @@ fuzz_target!(|data: Input| {
     for op in data.operations {
         match op {
             Op::Insert(k, v, size) => {
-                cache.insert(k, v, size as usize);
+                cache.insert(k, v, size);
             }
             Op::Get(k) => {
                 let _ = cache.get(&k);