diff --git a/Cargo.lock b/Cargo.lock
index 90c768c..d5d9e7b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -11522,11 +11522,12 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.117"
+version = "1.0.121"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "455182ea6142b14f93f4bc5320a2b31c1f266b66a4a5c858b013302a5d8cbfc3"
+checksum = "4ab380d7d9f22ef3f21ad3e6c1ebe8e4fc7a2000ccba2e4d71fc96f15b2cb609"
 dependencies = [
  "itoa",
+ "memchr",
  "ryu",
  "serde",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 72841de..949e6f2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,7 +24,7 @@ hex-literal = { version = "0.4.1" }
 log = { version = "0.4.20", default-features = false }
 scale-info = { version = "2.11.3", default-features = false }
 smallvec = "1.11.0"
-serde_json = "1.0.117"
+serde_json = "1.0.121"
 
 # wasm
 frame-benchmarking = { version = "28.0.0", default-features = false }