diff --git a/Cargo.lock b/Cargo.lock
index f1e5238bc..e69a7f8ab 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -12733,9 +12733,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.116"
+version = "1.0.120"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e17db7126d17feb94eb3fad46bf1a96b034e8aacbc2e775fe81505f8b0b2813"
+checksum = "4e0d21c9a8cae1235ad58a00c11cb40d4b1e5c784f1ef2c537876ed6ffd8b7c5"
 dependencies = [
  "itoa",
  "ryu",
diff --git a/Cargo.toml b/Cargo.toml
index 7eb050222..94d36fefe 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -290,7 +290,7 @@ parity-scale-codec    = { version = "3.6.12", default-features = false }
 paste                 = { version = "1.0.14" }
 scale-info            = { version = "2.11.3", default-features = false }
 serde                 = { version = "1.0.203", default-features = false }
-serde_json            = { version = "1.0.109", default-features = false }
+serde_json            = { version = "1.0.120", default-features = false }
 similar-asserts       = { version = "1.1.0" }
 smallvec              = { version = "1.13.1" }
 static_assertions     = { version = "1.1.0" }