diff --git a/Cargo.lock b/Cargo.lock
index 0fba50e4..d45d4003 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -106,7 +106,7 @@ dependencies = [
  "rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_urlencoded 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -264,7 +264,7 @@ dependencies = [
  "pin-project 0.4.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_urlencoded 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -359,7 +359,7 @@ dependencies = [
  "percent-encoding 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_urlencoded 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -572,7 +572,7 @@ dependencies = [
  "regex 1.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "tinytemplate 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1164,7 +1164,7 @@ dependencies = [
  "semver 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_yaml 0.8.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "tilejson 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1496,7 +1496,7 @@ dependencies = [
  "fallible-iterator 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "postgres-protocol 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "uuid 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1777,7 +1777,7 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.55"
+version = "1.0.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "itoa 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1901,7 +1901,7 @@ dependencies = [
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "syn 1.0.33 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2002,7 +2002,7 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "serde 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.56 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2055,7 +2055,7 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "serde 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.56 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2569,7 +2569,7 @@ dependencies = [
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 "checksum serde 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)" = "5317f7588f0a5078ee60ef675ef96735a1442132dc645eb1d12c018620ed8cd3"
 "checksum serde_derive 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)" = "2a0be94b04690fbaed37cddffc5c134bf537c8e3329d53e982fe04c374978f8e"
-"checksum serde_json 1.0.55 (registry+https://github.com/rust-lang/crates.io-index)" = "ec2c5d7e739bc07a3e73381a39d61fdb5f671c60c1df26a130690665803d8226"
+"checksum serde_json 1.0.56 (registry+https://github.com/rust-lang/crates.io-index)" = "3433e879a558dde8b5e8feb2a04899cf34fdde1fafb894687e52105fc1162ac3"
 "checksum serde_urlencoded 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9ec5d77e2d4c73717816afac02670d5c4f534ea95ed430442cad02e7a6e32c97"
 "checksum serde_yaml 0.8.13 (registry+https://github.com/rust-lang/crates.io-index)" = "ae3e2dd40a7cdc18ca80db804b7f461a39bb721160a85c9a1fa30134bf3c02a5"
 "checksum sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"