diff --git a/platform/rust/Cargo.lock b/platform/rust/Cargo.lock
index 3001c151..04392fe4 100644
--- a/platform/rust/Cargo.lock
+++ b/platform/rust/Cargo.lock
@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "ascii_utils"
 version = "0.9.3"
@@ -23,7 +25,7 @@ dependencies = [
 
 [[package]]
 name = "mailchecker"
-version = "4.1.17"
+version = "4.1.18"
 dependencies = [
  "fast_chemail",
  "once_cell",