diff --git a/Cargo.lock b/Cargo.lock
index f1325a7..707d7f8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -795,11 +795,12 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.120"
+version = "1.0.121"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4e0d21c9a8cae1235ad58a00c11cb40d4b1e5c784f1ef2c537876ed6ffd8b7c5"
+checksum = "4ab380d7d9f22ef3f21ad3e6c1ebe8e4fc7a2000ccba2e4d71fc96f15b2cb609"
 dependencies = [
  "itoa",
+ "memchr",
  "ryu",
  "serde",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index e252d86..f2f40e9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,5 +12,5 @@ eyre = "=0.6.12"
 rand = "=0.8.5"
 rumqttc = "=0.24.0"
 serde = "=1.0.204"
-serde_json = "=1.0.120"
+serde_json = "=1.0.121"
 tokio = { version = "=1.39.2", features = ["macros", "rt", "rt-multi-thread", "time", "process", "sync", "signal"] }