diff --git a/Cargo.lock b/Cargo.lock
index ff17958a7..6456d53fb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -864,7 +864,7 @@ dependencies = [
  "hex",
  "indexmap",
  "itertools 0.9.0",
- "jsonrpc-core",
+ "jsonrpc-core 15.0.0",
  "ledger-crypto",
  "ledger-transport",
  "ledger-transport-hid",
@@ -923,7 +923,7 @@ dependencies = [
  "client-rpc-core",
  "dirs",
  "env_logger",
- "jsonrpc-core",
+ "jsonrpc-core 15.0.0",
  "jsonrpc-http-server",
  "log",
  "structopt",
@@ -940,7 +940,7 @@ dependencies = [
  "client-network",
  "env_logger",
  "hex",
- "jsonrpc-core",
+ "jsonrpc-core 15.0.0",
  "jsonrpc-derive",
  "log",
  "parity-scale-codec",
@@ -1076,7 +1076,7 @@ dependencies = [
  "client-rpc-core",
  "env_logger",
  "hex",
- "jsonrpc-core",
+ "jsonrpc-core 15.0.0",
  "libc",
  "parity-scale-codec",
  "secp256k1",
@@ -2383,6 +2383,19 @@ dependencies = [
  "serde_json",
 ]
 
+[[package]]
+name = "jsonrpc-core"
+version = "15.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f30b12567a31d48588a65b6cf870081e6ba1d7b2ae353977cb9820d512e69c70"
+dependencies = [
+ "futures 0.1.29",
+ "log",
+ "serde",
+ "serde_derive",
+ "serde_json",
+]
+
 [[package]]
 name = "jsonrpc-derive"
 version = "14.2.2"
@@ -2402,7 +2415,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0da906d682799df05754480dac1b9e70ec92e12c19ebafd2662a5ea1c9fd6522"
 dependencies = [
  "hyper 0.12.35",
- "jsonrpc-core",
+ "jsonrpc-core 14.2.0",
  "jsonrpc-server-utils",
  "log",
  "net2",
@@ -2418,7 +2431,7 @@ checksum = "56cbfb462e7f902e21121d9f0d1c2b77b2c5b642e1a4e8f4ebfa2e15b94402bb"
 dependencies = [
  "bytes 0.4.12",
  "globset",
- "jsonrpc-core",
+ "jsonrpc-core 14.2.0",
  "lazy_static",
  "log",
  "tokio 0.1.22",
diff --git a/client-core/Cargo.toml b/client-core/Cargo.toml
index fbe225191..e87b9d4ba 100644
--- a/client-core/Cargo.toml
+++ b/client-core/Cargo.toml
@@ -33,7 +33,7 @@ itertools = "0.9"
 base64 = "0.12"
 bit-vec = "0.6.2"
 serde_json = "1.0.57"
-jsonrpc-core = "14.2"
+jsonrpc-core = "15.0"
 log ="0.4.11"
 serde = { version = "1.0", features = ["derive"] }
 tokio = "0.2"
diff --git a/client-rpc/Cargo.toml b/client-rpc/Cargo.toml
index b418d5adc..35e688830 100644
--- a/client-rpc/Cargo.toml
+++ b/client-rpc/Cargo.toml
@@ -11,7 +11,7 @@ client-core = { path = "../client-core" }
 client-network = { path= "../client-network"}
 
 base64 = "0.12"
-jsonrpc-core = "14.2"
+jsonrpc-core = "15.0"
 jsonrpc-derive = "14.2"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0.57"
diff --git a/client-rpc/server/Cargo.toml b/client-rpc/server/Cargo.toml
index 6233b99c2..b65500c61 100644
--- a/client-rpc/server/Cargo.toml
+++ b/client-rpc/server/Cargo.toml
@@ -14,7 +14,7 @@ client-common = { path = "../../client-common" }
 client-network = { path= "../../client-network"}
 chain-core = { path = "../../chain-core" }
 
-jsonrpc-core = "14.2"
+jsonrpc-core = "15.0"
 jsonrpc-http-server = "14.2"
 structopt = "0.3"
 dirs = "3.0.1"
diff --git a/cro-clib/Cargo.toml b/cro-clib/Cargo.toml
index 0392ddeca..b5e3dac5e 100644
--- a/cro-clib/Cargo.toml
+++ b/cro-clib/Cargo.toml
@@ -23,7 +23,7 @@ client-network = { path = "../client-network" }
 client-rpc-core = { path = "../client-rpc" }
 secstr = { version = "0.4.0", features = ["serde"] }
 secp256k1 = { git = "https://github.com/crypto-com/rust-secp256k1-zkp.git", default-features = false, rev = "1aae6edc5f1de0bbdcdb26f1f1d8b00ca28e012a", features = ["recovery", "endomorphism", "global-context"] }
-jsonrpc-core = "14.2"
+jsonrpc-core = "15.0"
 libc = "0.2.77"
 env_logger = "0.7"