diff --git a/Cargo.lock b/Cargo.lock
index cc946afeb47ea..6cbca73c104bd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1756,14 +1756,14 @@ dependencies = [
 
 [[package]]
 name = "jsonrpc-client-transports"
-version = "13.2.0"
+version = "14.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "failure 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.12.35 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-core 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-pubsub 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "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 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1774,7 +1774,7 @@ dependencies = [
 
 [[package]]
 name = "jsonrpc-core"
-version = "13.2.0"
+version = "14.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1786,31 +1786,31 @@ dependencies = [
 
 [[package]]
 name = "jsonrpc-core-client"
-version = "13.2.0"
+version = "14.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "jsonrpc-client-transports 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-client-transports 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "jsonrpc-derive"
-version = "13.2.0"
+version = "14.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro-crate 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "jsonrpc-http-server"
-version = "13.2.0"
+version = "14.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "hyper 0.12.35 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-core 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-server-utils 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-server-utils 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)",
  "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1819,10 +1819,10 @@ dependencies = [
 
 [[package]]
 name = "jsonrpc-pubsub"
-version = "13.2.0"
+version = "14.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "jsonrpc-core 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 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)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1830,15 +1830,14 @@ dependencies = [
 
 [[package]]
 name = "jsonrpc-server-utils"
-version = "13.2.0"
+version = "14.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "globset 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-core 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.1.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-codec 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 2.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1846,11 +1845,11 @@ dependencies = [
 
 [[package]]
 name = "jsonrpc-ws-server"
-version = "13.2.0"
+version = "14.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "jsonrpc-core 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-server-utils 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-server-utils 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)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2643,7 +2642,7 @@ dependencies = [
  "futures-preview 0.3.0-alpha.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "hex-literal 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "js-sys 0.3.28 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-core 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "kvdb-memorydb 0.1.0 (git+https://github.com/paritytech/parity-common?rev=b0317f649ab2c665b7987b8475878fc4d2e1f81d)",
  "libp2p 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2740,7 +2739,7 @@ dependencies = [
 name = "node-rpc"
 version = "2.0.0"
 dependencies = [
- "jsonrpc-core 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "node-primitives 2.0.0",
  "node-runtime 2.0.0",
  "sr-primitives 2.0.0",
@@ -2758,7 +2757,7 @@ dependencies = [
  "env_logger 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.12.35 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-core-client 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core-client 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)",
  "node-primitives 2.0.0",
  "substrate-rpc 2.0.0",
@@ -4474,9 +4473,9 @@ dependencies = [
 name = "srml-contracts-rpc"
 version = "2.0.0"
 dependencies = [
- "jsonrpc-core 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-core-client 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-derive 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core-client 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-derive 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
  "sr-primitives 2.0.0",
@@ -4928,9 +4927,9 @@ version = "2.0.0"
 dependencies = [
  "env_logger 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-preview 0.3.0-alpha.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-core 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-core-client 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-derive 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core-client 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-derive 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)",
  "parity-scale-codec 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -4985,9 +4984,9 @@ dependencies = [
 name = "srml-transaction-payment-rpc"
 version = "2.0.0"
 dependencies = [
- "jsonrpc-core 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-core-client 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-derive 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core-client 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-derive 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
  "sr-primitives 2.0.0",
@@ -5871,8 +5870,8 @@ dependencies = [
  "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-preview 0.3.0-alpha.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "hash-db 0.15.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-core 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-pubsub 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "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)",
  "parity-scale-codec 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5901,10 +5900,10 @@ version = "2.0.0"
 dependencies = [
  "derive_more 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-preview 0.3.0-alpha.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-core 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-core-client 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-derive 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-pubsub 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core-client 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-derive 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "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)",
  "parity-scale-codec 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5928,10 +5927,10 @@ dependencies = [
 name = "substrate-rpc-servers"
 version = "2.0.0"
 dependencies = [
- "jsonrpc-core 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-http-server 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-pubsub 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-ws-server 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-http-server 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-pubsub 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-ws-server 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 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -6740,7 +6739,7 @@ name = "twox-hash"
 version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "rand 0.3.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -7564,14 +7563,14 @@ dependencies = [
 "checksum itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "501266b7edd0174f8530248f87f99c88fbe60ca4ef3dd486835b8d8d53136f7f"
 "checksum jobserver 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)" = "f2b1d42ef453b30b7387e113da1c83ab1605d90c5b4e0eb8e96d016ed3b8c160"
 "checksum js-sys 0.3.28 (registry+https://github.com/rust-lang/crates.io-index)" = "2cc9a97d7cec30128fd8b28a7c1f9df1c001ceb9b441e2b755e24130a6b43c79"
-"checksum jsonrpc-client-transports 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8dbf2466adbf6d5b4e618857f22be40b1e1cc6ed79d72751324358f6b539b06d"
-"checksum jsonrpc-core 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "91d767c183a7e58618a609499d359ce3820700b3ebb4823a18c343b4a2a41a0d"
-"checksum jsonrpc-core-client 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "161dc223549fa6fe4a4eda675de2d1d3cff5a7164e5c031cdf1e22c734700f8b"
-"checksum jsonrpc-derive 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4a76285ebba4515680fbfe4b62498ccb2a932384c8732eed68351b02fb7ae475"
-"checksum jsonrpc-http-server 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "601fcc7bec888c7cbc7fd124d3d6744d72c0ebb540eca6fe2261b71f9cff6320"
-"checksum jsonrpc-pubsub 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "64e0fb0664d8ce287e826940dafbb45379443c595bdd71d93655f3c8f25fd992"
-"checksum jsonrpc-server-utils 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4d415f51d016a4682878e19dd03e8c0b61cd4394912d7cd3dc48d4f19f061a4e"
-"checksum jsonrpc-ws-server 13.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4699433c1ac006d7df178b4c29c191e5bb6d81e2dca18c5c804a094592900101"
+"checksum jsonrpc-client-transports 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "d389a085cb2184604dff060390cadb8cba1f063c7fd0ad710272c163c88b9f20"
+"checksum jsonrpc-core 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "34651edf3417637cc45e70ed0182ecfa9ced0b7e8131805fccf7400d989845ca"
+"checksum jsonrpc-core-client 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "9dbaec1d57271ff952f24ca79d37d716cfd749c855b058d9aa5f053a6b8ae4ef"
+"checksum jsonrpc-derive 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "d5d5c31575cc70a8b21542599028472c80a9248394aeea4d8918a045a0ab08a3"
+"checksum jsonrpc-http-server 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "aa54c4c2d88cb5e04b251a5031ba0f2ee8c6ef30970e31228955b89a80c3b611"
+"checksum jsonrpc-pubsub 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3ee1b8da0b9219a231c4b7cbc7110bfdb457cbcd8d90a6224d0b3cab8aae8443"
+"checksum jsonrpc-server-utils 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "87bc3c0a9a282211b2ec14abb3e977de33016bbec495332e9f7be858de7c5117"
+"checksum jsonrpc-ws-server 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "af36a129cef77a9db8028ac7552d927e1bb7b6928cd96b23dd25cc38bff974ab"
 "checksum keccak 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "67c21572b4949434e4fc1e1978b99c5f77064153c59d998bf13ecd96fb5ecba7"
 "checksum keccak-hasher 0.15.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3468207deea1359a0e921591ae9b4c928733d94eb9d6a2eeda994cfd59f42cf8"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
diff --git a/core/rpc-servers/Cargo.toml b/core/rpc-servers/Cargo.toml
index 80e16bc5ae5be..8fdf31db328d2 100644
--- a/core/rpc-servers/Cargo.toml
+++ b/core/rpc-servers/Cargo.toml
@@ -5,13 +5,13 @@ authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
-jsonrpc-core = "13.2.0"
-pubsub = { package = "jsonrpc-pubsub", version = "13.2.0" }
+jsonrpc-core = "14.0.3"
+pubsub = { package = "jsonrpc-pubsub", version = "14.0.3" }
 log = "0.4.8"
 serde = "1.0.101"
 serde_json = "1.0.41"
 sr-primitives = { path = "../sr-primitives" }
 
 [target.'cfg(not(target_os = "unknown"))'.dependencies]
-http = { package = "jsonrpc-http-server", version = "13.2.0" }
-ws = { package = "jsonrpc-ws-server", version = "13.2.0" }
+http = { package = "jsonrpc-http-server", version = "14.0.3" }
+ws = { package = "jsonrpc-ws-server", version = "14.0.3" }
diff --git a/core/rpc/Cargo.toml b/core/rpc/Cargo.toml
index 85998feb1b887..109db34240ccd 100644
--- a/core/rpc/Cargo.toml
+++ b/core/rpc/Cargo.toml
@@ -9,10 +9,10 @@ api = { package = "substrate-rpc-api", path = "./api" }
 client = { package = "substrate-client", path = "../client" }
 codec = { package = "parity-scale-codec", version = "1.0.0" }
 futures03 = { package = "futures-preview", version = "0.3.0-alpha.19", features = ["compat"] }
-jsonrpc-pubsub = "13.1.0"
+jsonrpc-pubsub = "14.0.3"
 log = "0.4.8"
 primitives = { package = "substrate-primitives", path = "../primitives" }
-rpc = { package = "jsonrpc-core", version = "13.0.0" }
+rpc = { package = "jsonrpc-core", version = "14.0.3" }
 runtime_version = { package = "sr-version", path = "../sr-version" }
 serde_json = "1.0.41"
 session = { package = "substrate-session", path = "../session" }
diff --git a/core/rpc/api/Cargo.toml b/core/rpc/api/Cargo.toml
index bccafc2a85dd7..5fb0e4cbaec71 100644
--- a/core/rpc/api/Cargo.toml
+++ b/core/rpc/api/Cargo.toml
@@ -8,10 +8,10 @@ edition = "2018"
 codec = { package = "parity-scale-codec", version = "1.0.0" }
 derive_more = "0.15.0"
 futures03 = { package = "futures-preview", version = "0.3.0-alpha.19", features = ["compat"] }
-jsonrpc-core = "13.2.0"
-jsonrpc-core-client = "13.2.0"
-jsonrpc-derive = "13.2.0"
-jsonrpc-pubsub = "13.2.0"
+jsonrpc-core = "14.0.3"
+jsonrpc-core-client = "14.0.3"
+jsonrpc-derive = "14.0.3"
+jsonrpc-pubsub = "14.0.3"
 log = "0.4.8"
 parking_lot = "0.9.0"
 primitives = { package = "substrate-primitives", path = "../../primitives" }
diff --git a/core/test-runtime/src/genesismap.rs b/core/test-runtime/src/genesismap.rs
index a02a1df855c35..909da32ee08b7 100644
--- a/core/test-runtime/src/genesismap.rs
+++ b/core/test-runtime/src/genesismap.rs
@@ -84,7 +84,7 @@ impl GenesisConfig {
 		let mut storage = (map, self.child_extra_storage.clone());
 		let mut config = system::GenesisConfig::default();
 		config.authorities = self.authorities.clone();
-		config.assimilate_storage(&mut storage);
+		config.assimilate_storage(&mut storage).expect("Adding `system::GensisConfig` to the genesis");
 
 		storage
 	}
diff --git a/node/cli/Cargo.toml b/node/cli/Cargo.toml
index 5e55d5c208577..f2ec66f8bfc03 100644
--- a/node/cli/Cargo.toml
+++ b/node/cli/Cargo.toml
@@ -24,7 +24,7 @@ crate-type = ["cdylib", "rlib"]
 [dependencies]
 log = "0.4.8"
 futures = "0.1.29"
-jsonrpc-core = "13.2.0"
+jsonrpc-core = "14.0.3"
 codec = { package = "parity-scale-codec", version = "1.0.0" }
 sr-io = { path = "../../core/sr-io" }
 client = { package = "substrate-client", path = "../../core/client" }
diff --git a/node/rpc-client/Cargo.toml b/node/rpc-client/Cargo.toml
index e377f89359582..bc30f598bbc22 100644
--- a/node/rpc-client/Cargo.toml
+++ b/node/rpc-client/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2018"
 env_logger = "0.7.0"
 futures = "0.1.29"
 hyper = "0.12.35"
-jsonrpc-core-client = { version = "13.1.0", features = ["http", "ws"] }
+jsonrpc-core-client = { version = "14.0.3", features = ["http", "ws"] }
 log = "0.4.8"
 node-primitives = { path = "../primitives" }
 substrate-rpc = { path = "../../core/rpc", version = "2.0.0" }
diff --git a/node/rpc/Cargo.toml b/node/rpc/Cargo.toml
index 5e8b7614892ba..5d2b3ac85832d 100644
--- a/node/rpc/Cargo.toml
+++ b/node/rpc/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2018"
 
 [dependencies]
 client = { package = "substrate-client", path = "../../core/client" }
-jsonrpc-core = "13.2.0"
+jsonrpc-core = "14.0.3"
 node-primitives = { path = "../primitives" }
 node-runtime = { path = "../runtime" }
 sr-primitives = { path = "../../core/sr-primitives" }
diff --git a/srml/contracts/rpc/Cargo.toml b/srml/contracts/rpc/Cargo.toml
index 90bf34bec1fd9..f9d51452f412f 100644
--- a/srml/contracts/rpc/Cargo.toml
+++ b/srml/contracts/rpc/Cargo.toml
@@ -7,9 +7,9 @@ edition = "2018"
 [dependencies]
 client = { package = "substrate-client", path = "../../../core/client" }
 codec = { package = "parity-scale-codec", version = "1.0.0" }
-jsonrpc-core = "13.2.0"
-jsonrpc-core-client = "13.2.0"
-jsonrpc-derive = "13.2.0"
+jsonrpc-core = "14.0.3"
+jsonrpc-core-client = "14.0.3"
+jsonrpc-derive = "14.0.3"
 primitives = { package = "substrate-primitives",  path = "../../../core/primitives" }
 rpc-primitives = { package = "substrate-rpc-primitives", path = "../../../core/rpc/primitives" }
 serde = { version = "1.0.101", features = ["derive"] }
diff --git a/srml/system/rpc/Cargo.toml b/srml/system/rpc/Cargo.toml
index 04856a817f681..e71e1f588a7ef 100644
--- a/srml/system/rpc/Cargo.toml
+++ b/srml/system/rpc/Cargo.toml
@@ -7,9 +7,9 @@ edition = "2018"
 [dependencies]
 client = { package = "substrate-client", path = "../../../core/client" }
 codec = { package = "parity-scale-codec", version = "1.0.0" }
-jsonrpc-core = "13.2.0"
-jsonrpc-core-client = "13.2.0"
-jsonrpc-derive = "13.2.0"
+jsonrpc-core = "14.0.3"
+jsonrpc-core-client = "14.0.3"
+jsonrpc-derive = "14.0.3"
 log = "0.4.8"
 serde = { version = "1.0.101", features = ["derive"] }
 sr-primitives = { path = "../../../core/sr-primitives" }
diff --git a/srml/transaction-payment/rpc/Cargo.toml b/srml/transaction-payment/rpc/Cargo.toml
index e3dc6f553fc0c..1fcfc21f805c3 100644
--- a/srml/transaction-payment/rpc/Cargo.toml
+++ b/srml/transaction-payment/rpc/Cargo.toml
@@ -7,9 +7,9 @@ edition = "2018"
 [dependencies]
 client = { package = "substrate-client", path = "../../../core/client" }
 codec = { package = "parity-scale-codec", version = "1.0.0" }
-jsonrpc-core = "13.2.0"
-jsonrpc-core-client = "13.2.0"
-jsonrpc-derive = "13.2.0"
+jsonrpc-core = "14.0.3"
+jsonrpc-core-client = "14.0.3"
+jsonrpc-derive = "14.0.3"
 primitives = { package = "substrate-primitives",  path = "../../../core/primitives" }
 rpc-primitives = { package = "substrate-rpc-primitives", path = "../../../core/rpc/primitives" }
 serde = { version = "1.0.101", features = ["derive"] }