diff --git a/Cargo.lock b/Cargo.lock
index 7eb6e8a..a862d5e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -392,9 +392,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.19.0"
+version = "1.21.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
+checksum = "9f7c3e4beb33f85d45ae3e3a1792185706c8e16d043238c593331cc7cd313b50"
 
 [[package]]
 name = "once_cell_polyfill"
diff --git a/general/echo/kmdf/exe/Cargo.toml b/general/echo/kmdf/exe/Cargo.toml
index 984b918..2bb9e0f 100644
--- a/general/echo/kmdf/exe/Cargo.toml
+++ b/general/echo/kmdf/exe/Cargo.toml
@@ -9,7 +9,7 @@ edition.workspace = true
 publish.workspace = true
 
 [dependencies.once_cell]
-version = "1.19.0"
+version = "1.21.4"
 
 [dependencies.uuid]
 version = "1.8.0"