diff --git a/Cargo.lock b/Cargo.lock
index 72a2e7dd1..ab4fda5e4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -343,7 +343,7 @@ dependencies = [
  "secp256k1zkp 0.13.0 (git+https://github.com/crypto-com/rust-secp256k1-zkp.git?rev=8b9a38b870a7759fcdbd4a5d435b5ba873c70afd)",
  "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha3 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "starling 3.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "structopt 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -364,7 +364,7 @@ dependencies = [
  "quickcheck 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "secp256k1zkp 0.13.0 (git+https://github.com/crypto-com/rust-secp256k1-zkp.git?rev=8b9a38b870a7759fcdbd4a5d435b5ba873c70afd)",
  "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "sgx_tstd 1.0.9 (git+https://github.com/baidu/rust-sgx-sdk.git?rev=v1.0.9)",
  "sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "static_assertions 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -480,7 +480,7 @@ dependencies = [
  "secp256k1zkp 0.13.0 (git+https://github.com/crypto-com/rust-secp256k1-zkp.git?rev=8b9a38b870a7759fcdbd4a5d435b5ba873c70afd)",
  "secstr 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "sled 0.29.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "tendermint 0.10.0 (git+https://github.com/crypto-com/tendermint-rs.git?rev=2b2e5650c5f1e62cd055cc1d3f51dee4ab427403)",
  "websocket 0.24.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -515,7 +515,7 @@ dependencies = [
  "secp256k1zkp 0.13.0 (git+https://github.com/crypto-com/rust-secp256k1-zkp.git?rev=8b9a38b870a7759fcdbd4a5d435b5ba873c70afd)",
  "secstr 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "tendermint 0.10.0 (git+https://github.com/crypto-com/tendermint-rs.git?rev=2b2e5650c5f1e62cd055cc1d3f51dee4ab427403)",
  "tiny-bip39 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.1.22 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -564,7 +564,7 @@ dependencies = [
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "secstr 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "structopt 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "tiny-bip39 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "zeroize 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -725,7 +725,7 @@ dependencies = [
  "quest 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "secstr 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "structopt 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1317,7 +1317,7 @@ dependencies = [
  "hyper 0.10.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1331,7 +1331,7 @@ dependencies = [
  "jsonrpc-pubsub 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1344,7 +1344,7 @@ dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2423,7 +2423,7 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.41"
+version = "1.0.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2794,7 +2794,7 @@ dependencies = [
  "prost-amino-derive 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "signatory 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "signatory-dalek 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3727,7 +3727,7 @@ dependencies = [
 "checksum serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)" = "0c4b39bd9b0b087684013a792c59e3e07a46a01d2322518d8a1104641a0b1be0"
 "checksum serde_bytes 0.11.2 (registry+https://github.com/rust-lang/crates.io-index)" = "45af0182ff64abaeea290235eb67da3825a576c5d53e642c4d5b652e12e6effc"
 "checksum serde_derive 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)" = "ca13fc1a832f793322228923fbb3aba9f3f44444898f835d31ad1b74fa0a2bf8"
-"checksum serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)" = "2f72eb2a68a7dc3f9a691bfda9305a1c017a6215e5a4545c258500d2099a37c2"
+"checksum serde_json 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)" = "1a3351dcbc1f067e2c92ab7c3c1f288ad1a4cffc470b5aaddb4c2e0a3ae80043"
 "checksum sgx_alloc 1.0.9 (git+https://github.com/baidu/rust-sgx-sdk.git?rev=v1.0.9)" = "<none>"
 "checksum sgx_backtrace_sys 1.0.9 (git+https://github.com/baidu/rust-sgx-sdk.git?rev=v1.0.9)" = "<none>"
 "checksum sgx_build_helper 0.1.0 (git+https://github.com/baidu/rust-sgx-sdk.git?rev=v1.0.9)" = "<none>"
diff --git a/client-core/Cargo.toml b/client-core/Cargo.toml
index faf8889b4..ba8273b39 100644
--- a/client-core/Cargo.toml
+++ b/client-core/Cargo.toml
@@ -26,7 +26,7 @@ rustls =  {version = "0.16", features = ["dangerous_configuration"]}
 yasna = { version = "0.3.0", features = ["bit-vec", "num-bigint", "chrono"] }
 bit-vec = "0.6.1"
 num-bigint = "0.2.3"
-serde_json = "1.0.41"
+serde_json = "1.0.42"
 uuid = { version = "0.8.1", features = ["v4"] }
 websocket = "0.24.0"
 jsonrpc-core = "14.0"
diff --git a/client-rpc/Cargo.toml b/client-rpc/Cargo.toml
index 054ec05d2..63e37d55c 100644
--- a/client-rpc/Cargo.toml
+++ b/client-rpc/Cargo.toml
@@ -11,7 +11,7 @@ chain-core = { path = "../chain-core" }
 client-common = { path = "../client-common" }
 client-core = { path = "../client-core" }
 client-network = { path= "../client-network"}
-serde_json = "1.0.41"
+serde_json = "1.0.42"
 jsonrpc-http-server = "14.0"
 jsonrpc-core = "14.0"
 jsonrpc-core-client = "14.0"