diff --git a/Cargo.lock b/Cargo.lock
index 9b44139e9..99b241e62 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1740,7 +1740,7 @@ dependencies = [
 
 [[package]]
 name = "jsonrpc-http-server"
-version = "14.0.5"
+version = "14.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "hyper 0.12.35 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1748,7 +1748,7 @@ dependencies = [
  "jsonrpc-server-utils 14.0.0 (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)",
+ "parking_lot 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 2.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2351,6 +2351,15 @@ dependencies = [
  "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "parking_lot"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lock_api 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot_core 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "parking_lot_core"
 version = "0.2.14"
@@ -2388,6 +2397,19 @@ dependencies = [
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "parking_lot_core"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "paste"
 version = "0.1.6"
@@ -3458,6 +3480,11 @@ name = "smallvec"
 version = "0.6.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "smallvec"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "socket2"
 version = "0.3.11"
@@ -3764,7 +3791,7 @@ dependencies = [
  "bincode 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "bs58 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-http-server 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-http-server 14.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "reqwest 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3808,7 +3835,7 @@ dependencies = [
  "itertools 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-derive 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-http-server 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-http-server 14.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-pubsub 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-ws-server 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -4531,7 +4558,7 @@ dependencies = [
  "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-derive 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-http-server 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-http-server 14.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.46 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-clap-utils 0.24.0",
@@ -6175,7 +6202,7 @@ dependencies = [
 "checksum js-sys 0.3.33 (registry+https://github.com/rust-lang/crates.io-index)" = "367647c532db6f1555d7151e619540ec5f713328235b8c062c6b4f63e84adfe3"
 "checksum jsonrpc-core 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "fe3b688648f1ef5d5072229e2d672ecb92cbff7d1c79bcf3fd5898f3f3df0970"
 "checksum jsonrpc-derive 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "8609af8f63b626e8e211f52441fcdb6ec54f1a446606b10d5c89ae9bf8a20058"
-"checksum jsonrpc-http-server 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "2d83d348120edee487c560b7cdd2565055d61cda053aa0d0ef0f8b6a18429048"
+"checksum jsonrpc-http-server 14.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "816d63997ea45d3634608edbef83ddb35e661f7c0b27b5b72f237e321f0e9807"
 "checksum jsonrpc-pubsub 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "3453625f0f0f5cd6d6776d389d73b7d70fcc98620b7cbb1cbbb1f6a36e95f39a"
 "checksum jsonrpc-server-utils 14.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "56ca64eeb4463722c49dd526e0a87dfc0cdecda9348a4b6f5720f25abc4fcc89"
 "checksum jsonrpc-ws-server 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "b34faa167c3ac9705aeecb986c0da6056529f348425dbe0441db60a2c4cc41d1"
@@ -6239,12 +6266,14 @@ dependencies = [
 "checksum pairing 0.14.2 (registry+https://github.com/rust-lang/crates.io-index)" = "ceda21136251c6d5a422d3d798d8ac22515a6e8d3521bb60c59a8349d36d0d57"
 "checksum parity-multiaddr 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "045b3c7af871285146300da35b1932bb6e4639b66c7c98e85d06a32cbc4e8fa7"
 "checksum parity-multihash 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "df3a17dc27848fd99e4f87eb0f8c9baba6ede0a6d555400c850ca45254ef4ce3"
+"checksum parking_lot 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "92e98c49ab0b7ce5b222f2cc9193fc4efe11c6d0bd4f648e374684a6857b1cfc"
 "checksum parking_lot 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "149d8f5b97f3c1133e3cfcd8886449959e856b557ff281e292b733d7c69e005e"
 "checksum parking_lot 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ab41b4aed082705d1056416ae4468b6ea99d52599ecf3169b00088d43113e337"
 "checksum parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f842b1982eb6c2fe34036a4fbfb06dd185a3f5c8edfaacdf7d1ea10b07de6252"
 "checksum parking_lot_core 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)" = "4db1a8ccf734a7bce794cc19b3df06ed87ab2f3907036b693c68f56b4d4537fa"
 "checksum parking_lot_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "94c8c7923936b28d546dfd14d4472eaf34c99b14e1c973a32b3e6d4eb04298c9"
 "checksum parking_lot_core 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b876b1b9e7ac6e1a74a6da34d25c42e17e8862aa409cbbbdcfc8d86c6f3bc62b"
+"checksum parking_lot_core 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7582838484df45743c8434fbff785e8edf260c28748353d44bc0da32e0ceabf1"
 "checksum paste 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "423a519e1c6e828f1e73b720f9d9ed2fa643dce8a7737fb43235ce0b41eeaa49"
 "checksum paste-impl 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "4214c9e912ef61bf42b81ba9a47e8aad1b2ffaf739ab162bf96d1e011f54e6c5"
 "checksum pbkdf2 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "006c038a43a45995a9670da19e67600114740e8511d4333bf97a56e66a7542d9"
@@ -6361,6 +6390,7 @@ dependencies = [
 "checksum slog-stdlog 3.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "f1c469573d1e3f36f9eee66cd132206caf47b50c94b1f6c6e7b4d8235e9ecf01"
 "checksum slog-term 2.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cb9b3fd9a3c2c86580fce3558a98ed7c69039da0288b08a3f15b371635254e08"
 "checksum smallvec 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)" = "ab606a9c5e214920bb66c458cd7be8ef094f813f20fe77a54cc7dbfff220d4b7"
+"checksum smallvec 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5c2fb2ec9bcd216a5b0d0ccf31ab17b5ed1d627960edff65bbe95d3ce221cefc"
 "checksum socket2 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)" = "e8b74de517221a2cb01a53349cf54182acdc31a074727d3079068448c0676d85"
 "checksum solana-reed-solomon-erasure 4.0.1-3 (registry+https://github.com/rust-lang/crates.io-index)" = "d5b3ab3f4dd12af687a7d0d0ee73299cbc06ed3aada42dccac26fe243e73399e"
 "checksum solana_libra_bytecode_verifier 0.0.1-sol4 (registry+https://github.com/rust-lang/crates.io-index)" = "79c3b7e9555da6f04a3f542a40e92bbbd46d0f05bd270ae3ff8c0283c329a179"
diff --git a/client/Cargo.toml b/client/Cargo.toml
index c50e416d3..96ba6ac47 100644
--- a/client/Cargo.toml
+++ b/client/Cargo.toml
@@ -27,5 +27,5 @@ url = "2.1.1"
 [dev-dependencies]
 assert_matches = "1.3.0"
 jsonrpc-core = "14.0.5"
-jsonrpc-http-server = "14.0.5"
+jsonrpc-http-server = "14.0.6"
 solana-logger = { path = "../logger", version = "0.24.0" }
diff --git a/core/Cargo.toml b/core/Cargo.toml
index 2505487eb..70b6fff4d 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -25,7 +25,7 @@ indexmap = "1.3"
 itertools = "0.8.2"
 jsonrpc-core = "14.0.5"
 jsonrpc-derive = "14.0.5"
-jsonrpc-http-server = "14.0.5"
+jsonrpc-http-server = "14.0.6"
 jsonrpc-pubsub = "14.0.5"
 jsonrpc-ws-server = "14.0.5"
 libc = "0.2.66"
diff --git a/vote-signer/Cargo.toml b/vote-signer/Cargo.toml
index 96f528dec..80798e34a 100644
--- a/vote-signer/Cargo.toml
+++ b/vote-signer/Cargo.toml
@@ -12,7 +12,7 @@ homepage = "https://solana.com/"
 clap = "2.33"
 jsonrpc-core = "14.0.5"
 jsonrpc-derive = "14.0.5"
-jsonrpc-http-server = "14.0.5"
+jsonrpc-http-server = "14.0.6"
 log = "0.4.8"
 serde_json = "1.0.46"
 solana-clap-utils = { path = "../clap-utils", version = "0.24.0" }