diff --git a/Cargo.lock b/Cargo.lock
index 873ed90..30305e7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -742,11 +742,12 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.91"
+version = "1.0.128"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "877c235533714907a8c2464236f5c4b2a17262ef1bd71f38f35ea592c8da6883"
+checksum = "6ff5456707a1de34e7e37f2a6fd3d3f808c318259cbd01ab6377795054b483d8"
 dependencies = [
  "itoa 1.0.1",
+ "memchr",
  "ryu",
  "serde",
 ]
diff --git a/sns-discord/Cargo.toml b/sns-discord/Cargo.toml
index 21f314e..f7cdda4 100644
--- a/sns-discord/Cargo.toml
+++ b/sns-discord/Cargo.toml
@@ -12,5 +12,5 @@ tokio = "1.19.2"
 hyper = { version = "0.14.23", features = ["client", "http2", "http1"] }
 hyper-rustls = "0.23.2"
 serde = "1.0.210"
-serde_json = "1.0.91"
+serde_json = "1.0.128"
 once_cell = "1.17.0"