diff --git a/Cargo.lock b/Cargo.lock
index 5be4f59..45acad6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1349,9 +1349,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.19.0"
+version = "1.21.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
+checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
 [[package]]
 name = "opencv-sys"
diff --git a/linux-hello/Cargo.toml b/linux-hello/Cargo.toml
index 1cfe435..359c9a5 100644
--- a/linux-hello/Cargo.toml
+++ b/linux-hello/Cargo.toml
@@ -21,7 +21,7 @@ color-eyre = "0.6.3"
 serde = { version = "1.0.204", features = ["derive"] }
 serde_json = "1.0.120"
 reqwest = { version = "0.12.5", features = ["blocking"] }
-once_cell = "1.19.0"
+once_cell = "1.21.3"
 figment = { version = "0.10.19", features = ["toml", "env"] }
 nix = { version = "0.29.0", features = ["user"] }
 crossbeam-channel = "0.5.13"