diff --git a/Cargo.lock b/Cargo.lock
index eb890b34..1b9c5d8d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -61,7 +61,6 @@ dependencies = [
  "equivalent",
  "hashbrown",
  "lock_api",
- "once_cell",
  "parking_lot_core",
  "rayon",
  "serde",
@@ -102,12 +101,6 @@ dependencies = [
  "scopeguard",
 ]
 
-[[package]]
-name = "once_cell"
-version = "1.20.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "945462a4b81e43c4e3ba96bd7b49d834c6f61198356aa858733bc4acf3cbe62e"
-
 [[package]]
 name = "parking_lot_core"
 version = "0.9.10"
diff --git a/Cargo.toml b/Cargo.toml
index 0f3e9d76..0d371b5f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,7 +27,6 @@ hashbrown = { version = "0.15.2", default-features = false }
 serde = { version = "1.0.217", optional = true, features = ["derive"] }
 cfg-if = "1.0.0"
 rayon = { version = "1.10.0", optional = true }
-once_cell = "1.20.3"
 arbitrary = { version = "1.4.1", optional = true }
 crossbeam-utils = "0.8"
 typesize = { version = "0.1.11", default-features = false, optional = true }
diff --git a/src/lib.rs b/src/lib.rs
index aac40a19..4f4e4a3f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -41,10 +41,10 @@ use lock::{RwLockReadGuardDetached, RwLockWriteGuardDetached};
 pub use mapref::entry::{Entry, OccupiedEntry, VacantEntry};
 use mapref::multiple::RefMulti;
 use mapref::one::{Ref, RefMut};
-use once_cell::sync::OnceCell;
 pub use read_only::ReadOnlyView;
 pub use set::DashSet;
 use std::collections::hash_map::RandomState;
+use std::sync::OnceLock;
 use try_result::TryResult;
 
 pub(crate) type HashMap<K, V> = hash_table::HashTable<(K, V)>;
@@ -58,7 +58,7 @@ pub(crate) type HashMap<K, V> = hash_table::HashTable<(K, V)>;
 pub struct TryReserveError {}
 
 fn default_shard_amount() -> usize {
-    static DEFAULT_SHARD_AMOUNT: OnceCell<usize> = OnceCell::new();
+    static DEFAULT_SHARD_AMOUNT: OnceLock<usize> = OnceLock::new();
     *DEFAULT_SHARD_AMOUNT.get_or_init(|| {
         (std::thread::available_parallelism().map_or(1, usize::from) * 4).next_power_of_two()
     })