diff --git a/Cargo.lock b/Cargo.lock
index 1b60ef26..e361e438 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -265,9 +265,9 @@ checksum = "ea221b5284a47e40033bf9b66f35f984ec0ea2931eb03505246cd27a963f981b"
 
 [[package]]
 name = "crates-index"
-version = "0.16.2"
+version = "0.16.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f24823d553339d125040d989d2a593a01b034fe5ac17714423bcd2c3d168878"
+checksum = "30905ea06bd8553b9cbb9ed5f7cbdae18159cc83b8ee3c7ca3c90f0128aa89cc"
 dependencies = [
  "git2",
  "glob",
@@ -529,9 +529,9 @@ dependencies = [
 
 [[package]]
 name = "git2"
-version = "0.13.15"
+version = "0.13.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44f267c9da8a4de3c615b59e23606c75f164f84896e97f4dd6c15a4294de4359"
+checksum = "d9831e983241f8c5591ed53f17d874833e2fa82cac2625f3888c50cbfe136cba"
 dependencies = [
  "bitflags",
  "libc",
@@ -593,9 +593,9 @@ dependencies = [
 
 [[package]]
 name = "hex"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "644f9158b2f133fd50f5fb3242878846d9eb792e445c893805ff0e3824006e35"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 dependencies = [
  "serde",
 ]
@@ -775,9 +775,9 @@ checksum = "9385f66bf6105b241aa65a61cb923ef20efc665cb9f9bb50ac2f0c4b7f378d41"
 
 [[package]]
 name = "libgit2-sys"
-version = "0.12.17+1.1.0"
+version = "0.12.21+1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f4ebdf65ca745126df8824688637aa0535a88900b83362d8ca63893bcf4e8841"
+checksum = "86271bacd72b2b9e854c3dcfb82efd538f15f870e4c11af66900effb462f6825"
 dependencies = [
  "cc",
  "libc",
@@ -850,9 +850,9 @@ checksum = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
 
 [[package]]
 name = "memchr"
-version = "2.3.4"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
+checksum = "b16bd47d9e329435e309c58469fe0791c2d0d1ba96ec0954152a5ae2b04387dc"
 
 [[package]]
 name = "mime"
@@ -1410,18 +1410,18 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.119"
+version = "1.0.126"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9bdd36f49e35b61d49efd8aa7fc068fd295961fd2286d0b2ee9a4c7a14e99cc3"
+checksum = "ec7505abeacaec74ae4778d9d9328fe5a5d04253220a85c4ee022239fc996d03"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.119"
+version = "1.0.126"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "552954ce79a059ddd5fd68c271592374bd15cab2274970380c000118aeffe1cd"
+checksum = "963a7dbc9895aeac7ac90e74f34a5d5261828f79df35cbed41e10189d3804d43"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1430,9 +1430,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.61"
+version = "1.0.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fceb2595057b6891a4ee808f70054bd2d12f0e97f1cbb78689b59f676df325a"
+checksum = "799e97dc9fdae36a5c8b8f2cae9ce2ee9fdce2058c57a93e6099d919fd982f79"
 dependencies = [
  "itoa",
  "ryu",
@@ -1565,9 +1565,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.58"
+version = "1.0.67"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc60a3d73ea6594cd712d830cc1f0390fd71542d8c8cd24e70cc54cdfd5e05d5"
+checksum = "6498a9efc342871f91cc2d0d694c674368b4ceb40f62b65a7a08c3792935e702"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index cf2a4b2c..2d74d44a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,7 +35,7 @@ strum_macros = "0.20.1"
 strum = "0.20.0"
 dirs = "3.0.1"
 serde_derive = "1.0.118"
-crates-index = "0.16.2"
+crates-index = "0.16.7"
 semver = "0.11.0"
 xz2 = "0.1.6"
 zip = "0.5.11"