diff --git a/Cargo.lock b/Cargo.lock
index 2d91674..72613e7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1180,9 +1180,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.21.3"
+version = "1.21.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
+checksum = "9f7c3e4beb33f85d45ae3e3a1792185706c8e16d043238c593331cc7cd313b50"
 
 [[package]]
 name = "oorandom"
diff --git a/Cargo.toml b/Cargo.toml
index 205fd3d..307cbb3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -31,7 +31,7 @@ embed-cjk = [
 default = []
 
 [dependencies]
-once_cell = "1.21.3"
+once_cell = "1.21.4"
 serde = { version = "1.0.228", features = ["derive"] }
 serde_json = "1.0.149"
 serde-wasm-bindgen = "0.6.5"