diff --git "a/\354\206\220\354\240\225\354\232\260/2020-03/2020-03-18/chat_client/Cargo.lock" "b/\354\206\220\354\240\225\354\232\260/2020-03/2020-03-18/chat_client/Cargo.lock"
index ccfaebb0..1ff32d86 100644
--- "a/\354\206\220\354\240\225\354\232\260/2020-03/2020-03-18/chat_client/Cargo.lock"
+++ "b/\354\206\220\354\240\225\354\232\260/2020-03/2020-03-18/chat_client/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 = "0.4.4"
@@ -255,9 +257,9 @@ dependencies = [
 
 [[package]]
 name = "net2"
-version = "0.2.33"
+version = "0.2.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "42550d9fb7b6684a6d404d9fa7250c2eb2646df731d1c06afc06dcee9e1bcf88"
+checksum = "391630d12b68002ae1e25e8f974306474966550ad82dac6886fb8910c19568ae"
 dependencies = [
  "cfg-if",
  "libc",