diff --git a/Cargo.lock b/Cargo.lock
index d1cbc1b5d..37eaca259 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1552,7 +1552,7 @@ dependencies = [
 
 [[package]]
 name = "jsonrpc-http-server"
-version = "14.0.1"
+version = "14.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "hyper 0.12.33 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3248,7 +3248,7 @@ dependencies = [
  "bincode 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "bs58 0.3.0 (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 14.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-http-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)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3315,7 +3315,7 @@ dependencies = [
  "itertools 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 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-http-server 14.0.1 (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)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -4034,7 +4034,7 @@ dependencies = [
  "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-derive 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-http-server 14.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-http-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 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5616,7 +5616,7 @@ dependencies = [
 "checksum js-sys 0.3.27 (registry+https://github.com/rust-lang/crates.io-index)" = "1efc4f2a556c58e79c5500912e221dd826bec64ff4aabd8ce71ccef6da02d7d4"
 "checksum jsonrpc-core 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "34651edf3417637cc45e70ed0182ecfa9ced0b7e8131805fccf7400d989845ca"
 "checksum jsonrpc-derive 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "d5d5c31575cc70a8b21542599028472c80a9248394aeea4d8918a045a0ab08a3"
-"checksum jsonrpc-http-server 14.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dd3d54c822dc67707f21b15f13995b24eb090501c8ad67782b5484c9be36255b"
+"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 14.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "56ca64eeb4463722c49dd526e0a87dfc0cdecda9348a4b6f5720f25abc4fcc89"
 "checksum jsonrpc-ws-server 14.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "af36a129cef77a9db8028ac7552d927e1bb7b6928cd96b23dd25cc38bff974ab"
diff --git a/client/Cargo.toml b/client/Cargo.toml
index 7b64ac699..1d0fb9c7f 100644
--- a/client/Cargo.toml
+++ b/client/Cargo.toml
@@ -24,5 +24,5 @@ solana-sdk = { path = "../sdk", version = "0.21.0" }
 
 [dev-dependencies]
 jsonrpc-core = "14.0.3"
-jsonrpc-http-server = "14.0.1"
+jsonrpc-http-server = "14.0.3"
 solana-logger = { path = "../logger", version = "0.21.0" }
diff --git a/core/Cargo.toml b/core/Cargo.toml
index 1a151be04..3c6ceafbe 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -30,7 +30,7 @@ indexmap = "1.1"
 itertools = "0.8.1"
 jsonrpc-core = "14.0.3"
 jsonrpc-derive = "14.0.3"
-jsonrpc-http-server = "14.0.1"
+jsonrpc-http-server = "14.0.3"
 jsonrpc-pubsub = "14.0.3"
 jsonrpc-ws-server = "14.0.3"
 lazy_static = "1.4.0"
diff --git a/vote-signer/Cargo.toml b/vote-signer/Cargo.toml
index 3c7dda3ad..54e873e77 100644
--- a/vote-signer/Cargo.toml
+++ b/vote-signer/Cargo.toml
@@ -13,7 +13,7 @@ bs58 = "0.3.0"
 clap = "2.33"
 jsonrpc-core = "14.0.3"
 jsonrpc-derive = "14.0.3"
-jsonrpc-http-server = "14.0.1"
+jsonrpc-http-server = "14.0.3"
 log = "0.4.8"
 serde = "1.0.102"
 serde_json = "1.0.41"