diff --git a/backend/Cargo.lock b/backend/Cargo.lock
index 18f13c1..eb29b6d 100644
--- a/backend/Cargo.lock
+++ b/backend/Cargo.lock
@@ -1297,12 +1297,12 @@ name = "serde"
 version = "1.0.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde_derive 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.100 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.99"
+version = "1.0.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1894,7 +1894,7 @@ dependencies = [
  "openssl-probe 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "pretty_env_logger 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.100 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.100 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "structopt 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "time-cache 0.1.0",
@@ -2039,7 +2039,7 @@ dependencies = [
 "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 1.0.100 (registry+https://github.com/rust-lang/crates.io-index)" = "f4473e8506b213730ff2061073b48fa51dcc66349219e2e7c5608f0296a1d95a"
-"checksum serde_derive 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)" = "cb4dc18c61206b08dc98216c98faa0232f4337e1e1b8574551d5bad29ea1b425"
+"checksum serde_derive 1.0.100 (registry+https://github.com/rust-lang/crates.io-index)" = "11e410fde43e157d789fc290d26bc940778ad0fdd47836426fbac36573710dbb"
 "checksum serde_json 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)" = "051c49229f282f7c6f3813f8286cc1e3323e8051823fce42c7ea80fe13521704"
 "checksum serde_urlencoded 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9ec5d77e2d4c73717816afac02670d5c4f534ea95ed430442cad02e7a6e32c97"
 "checksum sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
diff --git a/backend/Cargo.toml b/backend/Cargo.toml
index f0c8359..48967f9 100644
--- a/backend/Cargo.toml
+++ b/backend/Cargo.toml
@@ -17,7 +17,7 @@ mime_guess = "2.0.1"
 openssl-probe = "0.1.2"
 pretty_env_logger = "0.3.1"
 serde = { version = "1.0.100", features = ["rc"] }
-serde_derive = "1.0.99"
+serde_derive = "1.0.100"
 serde_json = "1.0.40"
 structopt = "0.2.18"
 time-cache = { path = "../time-cache" }