diff --git a/snippets/recipient-validation/rust_recipient_validation/Cargo.lock b/snippets/recipient-validation/rust_recipient_validation/Cargo.lock
index f83569a..9cc94ea 100644
--- a/snippets/recipient-validation/rust_recipient_validation/Cargo.lock
+++ b/snippets/recipient-validation/rust_recipient_validation/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"
@@ -770,9 +772,9 @@ checksum = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 
 [[package]]
 name = "smallvec"
-version = "1.4.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c7cb5678e1615754284ec264d9bb5b4c27d2018577fd90ac0ceb578591ed5ee4"
+checksum = "f2dd574626839106c320a323308629dcb1acfc96e32a8cba364ddc61ac23ee83"
 
 [[package]]
 name = "socket2"