diff --git a/Cargo.lock b/Cargo.lock
index 072568c654..b3fa5f816b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -141,7 +141,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -241,7 +241,7 @@ version = "0.11.0"
 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 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -319,7 +319,7 @@ 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 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -433,7 +433,7 @@ dependencies = [
  "idna 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "publicsuffix 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -705,7 +705,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -831,7 +831,7 @@ name = "generic-array"
 version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "typenum 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1042,7 +1042,7 @@ 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 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1084,7 +1084,7 @@ 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 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1096,7 +1096,7 @@ 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 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1146,7 +1146,7 @@ dependencies = [
  "jsonrpc-core 11.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1940,7 +1940,7 @@ dependencies = [
  "mime 0.3.13 (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 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_urlencoded 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2059,7 +2059,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde"
-version = "1.0.90"
+version = "1.0.91"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2082,7 +2082,7 @@ 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 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2092,7 +2092,7 @@ 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 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2103,7 +2103,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "dtoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "linked-hash-map 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "yaml-rust 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2190,7 +2190,7 @@ dependencies = [
  "reed-solomon-erasure 3.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "reqwest 0.9.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "rocksdb 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-budget-api 0.15.0",
@@ -2227,7 +2227,7 @@ dependencies = [
  "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana 0.15.0",
@@ -2295,7 +2295,7 @@ dependencies = [
  "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.15.0",
  "solana-sdk 0.15.0",
  "solana_rbpf 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2310,7 +2310,7 @@ dependencies = [
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-derive 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-runtime 0.15.0",
  "solana-sdk 0.15.0",
@@ -2336,7 +2336,7 @@ dependencies = [
  "jsonrpc-http-server 10.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "reqwest 0.9.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.15.0",
@@ -2350,7 +2350,7 @@ version = "0.15.0"
 dependencies = [
  "bincode 1.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.15.0",
  "solana-runtime 0.15.0",
@@ -2376,7 +2376,7 @@ dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.15.0",
  "solana-metrics 0.15.0",
@@ -2391,7 +2391,7 @@ version = "0.15.0"
 dependencies = [
  "bincode 1.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.15.0",
  "solana-metrics 0.15.0",
@@ -2482,7 +2482,7 @@ dependencies = [
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "reqwest 0.9.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "ring 0.13.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_yaml 0.8.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-client 0.15.0",
@@ -2513,7 +2513,7 @@ dependencies = [
  "crc 1.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "memmap 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 3.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2601,7 +2601,7 @@ dependencies = [
  "memmap 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.15.0",
@@ -2627,7 +2627,7 @@ dependencies = [
  "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2640,7 +2640,7 @@ version = "0.15.0"
 dependencies = [
  "bincode 1.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.15.0",
  "solana-metrics 0.15.0",
@@ -2665,7 +2665,7 @@ version = "0.15.0"
 dependencies = [
  "bincode 1.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.15.0",
  "solana-runtime 0.15.0",
@@ -2690,7 +2690,7 @@ dependencies = [
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-derive 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.15.0",
  "solana-sdk 0.15.0",
@@ -2720,7 +2720,7 @@ version = "0.15.0"
 dependencies = [
  "bincode 1.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.15.0",
  "solana-metrics 0.15.0",
@@ -2747,7 +2747,7 @@ dependencies = [
  "jsonrpc-derive 11.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-http-server 11.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-metrics 0.15.0",
  "solana-sdk 0.15.0",
@@ -3128,7 +3128,7 @@ name = "toml"
 version = "0.4.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3612,7 +3612,7 @@ dependencies = [
 "checksum security-framework-sys 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3d6696852716b589dff9e886ff83778bb635150168e83afa8ac6b8a78cb82abc"
 "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 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)" = "aa5f7c20820475babd2c077c3ab5f8c77a31c15e16ea38687b4c02d3e48680f4"
+"checksum serde 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)" = "a72e9b96fa45ce22a4bc23da3858dfccfd60acd28a25bcd328a98fdd6bea43fd"
 "checksum serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)" = "58fc82bec244f168b23d1963b45c8bf5726e9a15a9d146a067f9081aeed2de79"
 "checksum serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)" = "5a23aa71d4a4d43fdbfaac00eff68ba8a06a51759a89ac3304323e800c4dd40d"
 "checksum serde_urlencoded 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)" = "d48f9f99cd749a2de71d29da5f948de7f2764cc5a9d7f3c97e3514d4ee6eabf2"
diff --git a/bench-exchange/Cargo.toml b/bench-exchange/Cargo.toml
index 9f2e7d2388..10cad47226 100644
--- a/bench-exchange/Cargo.toml
+++ b/bench-exchange/Cargo.toml
@@ -18,7 +18,7 @@ num-traits = "0.2"
 num-derive = "0.2"
 rand = "0.6.5"
 rayon = "1.0.3"
-serde = "1.0.87"
+serde = "1.0.91"
 serde_derive = "1.0.87"
 serde_json = "1.0.38"
 # solana-runtime = { path = "../solana/runtime"}
diff --git a/drone/Cargo.toml b/drone/Cargo.toml
index 3a2dae7e27..7dce949c9f 100644
--- a/drone/Cargo.toml
+++ b/drone/Cargo.toml
@@ -18,7 +18,7 @@ bytes = "0.4"
 byteorder = "1.3.1"
 clap = "2.33"
 log = "0.4.2"
-serde = "1.0.90"
+serde = "1.0.91"
 serde_derive = "1.0.90"
 solana-logger = { path = "../logger", version = "0.15.0"  }
 solana-sdk = { path = "../sdk", version = "0.15.0"  }
diff --git a/install/Cargo.toml b/install/Cargo.toml
index 1380c43d6c..7f12d44a57 100644
--- a/install/Cargo.toml
+++ b/install/Cargo.toml
@@ -25,7 +25,7 @@ lazy_static = "1.3.0"
 log = "0.4.2"
 reqwest = "0.9.16"
 ring = "0.13.2"
-serde = "1.0.90"
+serde = "1.0.91"
 serde_derive = "1.0.90"
 serde_yaml = "0.8.9"
 solana-client = { path = "../client", version = "0.15.0"  }
diff --git a/kvstore/Cargo.toml b/kvstore/Cargo.toml
index 175e34dabe..8bf4d23d18 100644
--- a/kvstore/Cargo.toml
+++ b/kvstore/Cargo.toml
@@ -15,7 +15,7 @@ chrono = "0.4.0"
 crc = "1.8.1"
 memmap = "0.7.0"
 rand = "0.6.5"
-serde = "1.0.90"
+serde = "1.0.91"
 serde_derive = "1.0.90"
 
 [dev-dependencies]
diff --git a/programs/bpf_loader/Cargo.toml b/programs/bpf_loader/Cargo.toml
index 277339a08a..08a7b9c0b2 100644
--- a/programs/bpf_loader/Cargo.toml
+++ b/programs/bpf_loader/Cargo.toml
@@ -14,7 +14,7 @@ byteorder = "1.3.1"
 libc = "0.2.54"
 log = "0.4.2"
 solana_rbpf = "=0.1.10"
-serde = "1.0.90"
+serde = "1.0.91"
 solana-logger = { path = "../../logger", version = "0.15.0"  }
 solana-sdk = { path = "../../sdk", version = "0.15.0"  }
 
diff --git a/programs/budget_api/Cargo.toml b/programs/budget_api/Cargo.toml
index 4c4d19b62d..ae7dab9532 100644
--- a/programs/budget_api/Cargo.toml
+++ b/programs/budget_api/Cargo.toml
@@ -14,7 +14,7 @@ chrono = { version = "0.4.0", features = ["serde"] }
 log = "0.4.2"
 num-derive = "0.2"
 num-traits = "0.2"
-serde = "1.0.90"
+serde = "1.0.91"
 serde_derive = "1.0.90"
 solana-sdk = { path = "../../sdk", version = "0.15.0"  }
 
diff --git a/programs/config_api/Cargo.toml b/programs/config_api/Cargo.toml
index 357da1832b..a2f2ba34a5 100644
--- a/programs/config_api/Cargo.toml
+++ b/programs/config_api/Cargo.toml
@@ -11,7 +11,7 @@ edition = "2018"
 [dependencies]
 bincode = "1.1.3"
 log = "0.4.2"
-serde = "1.0.90"
+serde = "1.0.91"
 serde_derive = "1.0.90"
 solana-logger = { path = "../../logger", version = "0.15.0"  }
 solana-sdk = { path = "../../sdk", version = "0.15.0"  }
diff --git a/programs/exchange_api/Cargo.toml b/programs/exchange_api/Cargo.toml
index 1d94baa319..d20e78f147 100644
--- a/programs/exchange_api/Cargo.toml
+++ b/programs/exchange_api/Cargo.toml
@@ -11,7 +11,7 @@ edition = "2018"
 [dependencies]
 log = "0.4.2"
 bincode = "1.1.3"
-serde = "1.0.90"
+serde = "1.0.91"
 serde_derive = "1.0.90"
 solana-logger = { path = "../../logger", version = "0.15.0"  }
 solana-sdk = { path = "../../sdk", version = "0.15.0"  }
diff --git a/programs/stake_api/Cargo.toml b/programs/stake_api/Cargo.toml
index 65fc83ab55..2352604bad 100644
--- a/programs/stake_api/Cargo.toml
+++ b/programs/stake_api/Cargo.toml
@@ -11,7 +11,7 @@ edition = "2018"
 [dependencies]
 bincode = "1.1.3"
 log = "0.4.2"
-serde = "1.0.90"
+serde = "1.0.91"
 serde_derive = "1.0.90"
 solana-logger = { path = "../../logger", version = "0.15.0"  }
 solana-metrics = { path = "../../metrics", version = "0.15.0"  }
diff --git a/programs/storage_api/Cargo.toml b/programs/storage_api/Cargo.toml
index 6db9ac3c20..b7ebec33b9 100644
--- a/programs/storage_api/Cargo.toml
+++ b/programs/storage_api/Cargo.toml
@@ -11,7 +11,7 @@ edition = "2018"
 [dependencies]
 bincode = "1.1.3"
 log = "0.4.2"
-serde = "1.0.90"
+serde = "1.0.91"
 serde_derive = "1.0.90"
 solana-logger = { path = "../../logger", version = "0.15.0"  }
 solana-sdk = { path = "../../sdk", version = "0.15.0"  }
diff --git a/programs/token_api/Cargo.toml b/programs/token_api/Cargo.toml
index c093ec9eed..226f7925bc 100644
--- a/programs/token_api/Cargo.toml
+++ b/programs/token_api/Cargo.toml
@@ -13,7 +13,7 @@ bincode = "1.1.3"
 log = "0.4.2"
 num-derive = "0.2"
 num-traits = "0.2"
-serde = "1.0.90"
+serde = "1.0.91"
 serde_derive = "1.0.90"
 solana-logger = { path = "../../logger", version = "0.15.0"  }
 solana-sdk = { path = "../../sdk", version = "0.15.0"  }
diff --git a/programs/vote_api/Cargo.toml b/programs/vote_api/Cargo.toml
index db0175b12b..ee2a63dfbe 100644
--- a/programs/vote_api/Cargo.toml
+++ b/programs/vote_api/Cargo.toml
@@ -11,7 +11,7 @@ edition = "2018"
 [dependencies]
 bincode = "1.1.3"
 log = "0.4.2"
-serde = "1.0.90"
+serde = "1.0.91"
 serde_derive = "1.0.90"
 solana-logger = { path = "../../logger", version = "0.15.0"  }
 solana-metrics = { path = "../../metrics", version = "0.15.0"  }
diff --git a/sdk/Cargo.toml b/sdk/Cargo.toml
index c558d66b89..f7c1200620 100644
--- a/sdk/Cargo.toml
+++ b/sdk/Cargo.toml
@@ -23,7 +23,7 @@ num-traits = "0.2"
 rand = "0.6.5"
 rayon = "1.0.0"
 sha2 = "0.8.0"
-serde = "1.0.90"
+serde = "1.0.91"
 serde_derive = "1.0.90"
 serde_json = "1.0.39"
 untrusted = "0.6.2"
diff --git a/vote-signer/Cargo.toml b/vote-signer/Cargo.toml
index c7a9efa7e5..50bc61c3fb 100644
--- a/vote-signer/Cargo.toml
+++ b/vote-signer/Cargo.toml
@@ -15,7 +15,7 @@ log = "0.4.2"
 jsonrpc-core = "11.0.0"
 jsonrpc-derive = "11.0.0"
 jsonrpc-http-server = "11.0.0"
-serde = "1.0.90"
+serde = "1.0.91"
 serde_json = "1.0.39"
 solana-sdk = { path = "../sdk", version = "0.15.0"  }
 solana-metrics = { path = "../metrics", version = "0.15.0"  }