diff --git a/Cargo.lock b/Cargo.lock
index 1cd1efc5..abbf0243 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1436,9 +1436,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.20.3"
+version = "1.21.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "945462a4b81e43c4e3ba96bd7b49d834c6f61198356aa858733bc4acf3cbe62e"
+checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
 [[package]]
 name = "openssl-probe"
diff --git a/Cargo.toml b/Cargo.toml
index 38674f66..01817f71 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,7 +27,7 @@ tokio = { version = "1.40", default-features = false }
 tokio-stream = "0.1"
 tonic = "0.12"
 tonic-reflection = "0.12"
-once_cell = "1.20"
+once_cell = "1.21"
 petgraph = "0.6"
 prost = "0.13"
 rand = "0.8"