diff --git a/rust/blake2/Cargo.lock b/rust/blake2/Cargo.lock
index 8772007..1d184be 100644
--- a/rust/blake2/Cargo.lock
+++ b/rust/blake2/Cargo.lock
@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "arc-swap"
 version = "0.4.7"
@@ -59,9 +61,9 @@ dependencies = [
 
 [[package]]
 name = "bumpalo"
-version = "3.4.0"
+version = "3.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e8c087f005730276d1096a652e92a8bacee2e2472bcc9715a74d2bec38b5820"
+checksum = "0d261e256854913907f67ed06efbc3338dfe6179796deefc1ff763fc1aee5535"
 
 [[package]]
 name = "bytes"