diff --git a/Cargo.lock b/Cargo.lock
index 67a0d4069..795c9ddf1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -111,7 +111,7 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -204,7 +204,7 @@ version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "feature-probe 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -264,7 +264,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "num-integer 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -617,7 +617,7 @@ name = "generic-array"
 version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "typenum 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -792,7 +792,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "hyper 0.10.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper-native-tls 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1498,7 +1498,7 @@ dependencies = [
  "mime 0.3.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime_guess 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "native-tls 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_urlencoded 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1615,7 +1615,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde"
-version = "1.0.82"
+version = "1.0.84"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "serde_derive 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1638,7 +1638,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "itoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "ryu 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1648,7 +1648,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "dtoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "itoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1731,7 +1731,7 @@ dependencies = [
  "reqwest 0.9.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "ring 0.13.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rocksdb 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-bpfloader 0.12.0",
@@ -1786,7 +1786,7 @@ dependencies = [
  "elf 0.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.45 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.12.0",
  "solana-sdk 0.12.0",
  "solana_rbpf 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1799,7 +1799,7 @@ dependencies = [
  "bincode 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.12.0",
  "solana-sdk 0.12.0",
@@ -1814,7 +1814,7 @@ dependencies = [
  "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-metrics 0.12.0",
  "solana-sdk 0.12.0",
@@ -1828,7 +1828,7 @@ version = "0.12.0"
 dependencies = [
  "bincode 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.12.0",
  "solana-sdk 0.12.0",
@@ -1857,7 +1857,7 @@ dependencies = [
  "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "dirs 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-netutil 0.12.0",
@@ -1882,7 +1882,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1894,7 +1894,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1930,7 +1930,7 @@ name = "solana-jsonrpc-macros"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-jsonrpc-core 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-jsonrpc-pubsub 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1940,7 +1940,7 @@ name = "solana-jsonrpc-macros"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-jsonrpc-core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-jsonrpc-pubsub 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2044,7 +2044,7 @@ dependencies = [
  "bincode 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rlua 0.15.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.12.0",
  "solana-sdk 0.12.0",
@@ -2120,7 +2120,7 @@ dependencies = [
  "generic-array 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "ring 0.13.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2133,7 +2133,7 @@ version = "0.12.0"
 dependencies = [
  "bincode 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.12.0",
  "solana-sdk 0.12.0",
@@ -2145,7 +2145,7 @@ version = "0.12.0"
 dependencies = [
  "bincode 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-sdk 0.12.0",
 ]
 
@@ -2163,7 +2163,7 @@ version = "0.12.0"
 dependencies = [
  "bincode 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.12.0",
  "solana-metrics 0.12.0",
@@ -2892,7 +2892,7 @@ dependencies = [
 "checksum security-framework-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ab01dfbe5756785b5b4d46e0289e5a18071dfa9a7c2b24213ea00b9ef9b665bf"
 "checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
-"checksum serde 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)" = "6fa52f19aee12441d5ad11c9a00459122bd8f98707cadf9778c540674f1935b6"
+"checksum serde 1.0.84 (registry+https://github.com/rust-lang/crates.io-index)" = "0e732ed5a5592c17d961555e3b552985baf98d50ce418b7b655f31f6ba7eb1b7"
 "checksum serde_derive 1.0.82 (registry+https://github.com/rust-lang/crates.io-index)" = "96a7f9496ac65a2db5929afa087b54f8fc5008dcfbe48a8874ed20049b0d6154"
 "checksum serde_json 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)" = "bdf540260cfee6da923831f4776ddc495ada940c30117977c70f1313a6130545"
 "checksum serde_urlencoded 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)" = "d48f9f99cd749a2de71d29da5f948de7f2764cc5a9d7f3c97e3514d4ee6eabf2"
diff --git a/Cargo.toml b/Cargo.toml
index a6d1633dd..eb6111a08 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -41,7 +41,7 @@ rayon = "1.0.0"
 reqwest = "0.9.0"
 ring = "0.13.2"
 rocksdb = "0.10.1"
-serde = "1.0.82"
+serde = "1.0.84"
 serde_derive = "1.0.82"
 serde_json = "1.0.34"
 solana-bpfloader = { path = "programs/native/bpf_loader", version = "0.12.0" }
diff --git a/drone/Cargo.toml b/drone/Cargo.toml
index 147c7ca1f..7b064a9b6 100644
--- a/drone/Cargo.toml
+++ b/drone/Cargo.toml
@@ -17,7 +17,7 @@ bytes = "0.4"
 byteorder = "1.2.1"
 clap = "2.31"
 log = "0.4.2"
-serde = "1.0.82"
+serde = "1.0.84"
 serde_derive = "1.0.82"
 solana-sdk = { path = "../sdk", version = "0.12.0" }
 solana-metrics = { path = "../metrics", version = "0.12.0" }
diff --git a/fullnode-config/Cargo.toml b/fullnode-config/Cargo.toml
index ca5ecafd6..d974616ce 100644
--- a/fullnode-config/Cargo.toml
+++ b/fullnode-config/Cargo.toml
@@ -11,7 +11,7 @@ homepage = "https://solana.com/"
 clap = "2.32.0"
 dirs = "1.0.2"
 log = "0.4.2"
-serde = "1.0.82"
+serde = "1.0.84"
 serde_derive = "1.0.82"
 serde_json = "1.0.34"
 solana-netutil = { path = "../netutil", version = "0.12.0" }
diff --git a/programs/native/bpf_loader/Cargo.toml b/programs/native/bpf_loader/Cargo.toml
index 8629022fb..cfecaff2f 100644
--- a/programs/native/bpf_loader/Cargo.toml
+++ b/programs/native/bpf_loader/Cargo.toml
@@ -19,7 +19,7 @@ elf = "0.0.10"
 libc = "0.2.45"
 log = "0.4.2"
 solana_rbpf = "=0.1.6"
-serde = "1.0.82"
+serde = "1.0.84"
 solana-logger = { path = "../../../logger", version = "0.12.0" }
 solana-sdk = { path = "../../../sdk", version = "0.12.0" }
 
diff --git a/programs/native/budget/Cargo.toml b/programs/native/budget/Cargo.toml
index ae6338e12..b3cd723f0 100644
--- a/programs/native/budget/Cargo.toml
+++ b/programs/native/budget/Cargo.toml
@@ -12,7 +12,7 @@ edition = "2018"
 bincode = "1.0.0"
 chrono = { version = "0.4.0", features = ["serde"] }
 log = "0.4.2"
-serde = "1.0.82"
+serde = "1.0.84"
 serde_derive = "1.0.82"
 solana-logger = { path = "../../../logger", version = "0.12.0" }
 solana-sdk = { path = "../../../sdk", version = "0.12.0" }
diff --git a/programs/native/erc20/Cargo.toml b/programs/native/erc20/Cargo.toml
index e80ae85ef..8459dd5a7 100644
--- a/programs/native/erc20/Cargo.toml
+++ b/programs/native/erc20/Cargo.toml
@@ -11,7 +11,7 @@ edition = "2018"
 [dependencies]
 bincode = "1.0.0"
 log = "0.4.2"
-serde = "1.0.82"
+serde = "1.0.84"
 serde_derive = "1.0.82"
 solana-logger = { path = "../../../logger", version = "0.12.0" }
 solana-sdk = { path = "../../../sdk", version = "0.12.0" }
diff --git a/programs/native/lua_loader/Cargo.toml b/programs/native/lua_loader/Cargo.toml
index 610f48717..f4ccdb890 100644
--- a/programs/native/lua_loader/Cargo.toml
+++ b/programs/native/lua_loader/Cargo.toml
@@ -12,7 +12,7 @@ edition = "2018"
 bincode = "1.0.0"
 log = "0.4.2"
 rlua = "0.15.2"
-serde = "1.0.82"
+serde = "1.0.84"
 serde_derive = "1.0.82"
 solana-logger = { path = "../../../logger", version = "0.12.0" }
 solana-sdk = { path = "../../../sdk", version = "0.12.0" }
diff --git a/programs/native/storage/Cargo.toml b/programs/native/storage/Cargo.toml
index 7100c2924..bd414c1fa 100644
--- a/programs/native/storage/Cargo.toml
+++ b/programs/native/storage/Cargo.toml
@@ -11,7 +11,7 @@ edition = "2018"
 [dependencies]
 bincode = "1.0.0"
 log = "0.4.2"
-serde = "1.0.27"
+serde = "1.0.84"
 serde_derive = "1.0.27"
 solana-logger = { path = "../../../logger", version = "0.12.0" }
 solana-sdk = { path = "../../../sdk", version = "0.12.0" }
diff --git a/programs/native/system/Cargo.toml b/programs/native/system/Cargo.toml
index 5665aec49..6b0e86fc3 100644
--- a/programs/native/system/Cargo.toml
+++ b/programs/native/system/Cargo.toml
@@ -11,7 +11,7 @@ edition = "2018"
 [dependencies]
 bincode = "1.0.0"
 log = "0.4.2"
-serde = "1.0.27"
+serde = "1.0.84"
 solana-sdk = { path = "../../../sdk", version = "0.12.0" }
 
 [lib]
diff --git a/programs/native/vote/Cargo.toml b/programs/native/vote/Cargo.toml
index 9159a5a8a..5f943e233 100644
--- a/programs/native/vote/Cargo.toml
+++ b/programs/native/vote/Cargo.toml
@@ -11,7 +11,7 @@ edition = "2018"
 [dependencies]
 bincode = "1.0.0"
 log = "0.4.2"
-serde = "1.0.82"
+serde = "1.0.84"
 serde_derive = "1.0.82"
 solana-logger = { path = "../../../logger", version = "0.12.0" }
 solana-metrics = { path = "../../../metrics", version = "0.12.0" }
diff --git a/sdk/Cargo.toml b/sdk/Cargo.toml
index 497f09cc0..7e4852e7a 100644
--- a/sdk/Cargo.toml
+++ b/sdk/Cargo.toml
@@ -17,7 +17,7 @@ generic-array = { version = "0.12.0", default-features = false, features = ["ser
 log = "0.4.2"
 ring = "0.13.2"
 sha2 = "0.8.0"
-serde = "1.0.82"
+serde = "1.0.84"
 serde_derive = "1.0.82"
 serde_json = "1.0.34"
 untrusted = "0.6.2"