diff --git a/Cargo.lock b/Cargo.lock
index 20931ba..2ca069e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "async-stream"
@@ -733,18 +733,28 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.214"
+version = "1.0.228"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f55c3193aca71c12ad7890f1785d2b73e1b9f63a0bbc353c08ef26fe03fc56b5"
+checksum = "9a8e94ea7f378bd32cbbd37198a4a91436180c5bb472411e48b5ec2e2124ae9e"
+dependencies = [
+ "serde_core",
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_core"
+version = "1.0.228"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41d385c7d4ca58e59fc732af25c3983b67ac852c1a25000afe1175de458b67ad"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.214"
+version = "1.0.228"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de523f781f095e28fa605cdce0f8307e451cc0fd14e2eb4cd2e98a355b147766"
+checksum = "d540f220d3187173da220f885ab66608367b6574e925011a9353e4badda91d79"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/sns-discord/Cargo.toml b/sns-discord/Cargo.toml
index 6549dc5..36cd263 100644
--- a/sns-discord/Cargo.toml
+++ b/sns-discord/Cargo.toml
@@ -11,6 +11,6 @@ lambda_runtime = "0.13.0"
 tokio = "1.19.2"
 hyper = { version = "0.14.23", features = ["client", "http2", "http1"] }
 hyper-rustls = "0.23.2"
-serde = "1.0.214"
+serde = "1.0.228"
 serde_json = "1.0.134"
 once_cell = "1.20.1"