diff --git a/Cargo.lock b/Cargo.lock
index 6b739d6eee..85d534da09 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -261,9 +261,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.59"
+version = "1.0.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "66120af515773fb005778dc07c261bd201ec8ce50bd6e7144c927753fe013381"
+checksum = "f9a06fb2e53271d7c279ec1efea6ab691c35a2ae67ec0d91d7acec0caf13b518"
 dependencies = [
  "jobserver",
 ]
@@ -505,9 +505,9 @@ dependencies = [
 
 [[package]]
 name = "curl"
-version = "0.4.32"
+version = "0.4.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "853b8e48269afe390ccb0bb6b6d22622f25e4237fb693424e2abfed09dfa579f"
+checksum = "9447ad28eee2a5cfb031c329d46bef77487244fff6a724b378885b8691a35f78"
 dependencies = [
  "curl-sys",
  "libc",
@@ -520,9 +520,9 @@ dependencies = [
 
 [[package]]
 name = "curl-sys"
-version = "0.4.35+curl-7.71.1"
+version = "0.4.34+curl-7.71.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d37640a2621038c6a0e98ffa18209b35bb5e59eb42d4a761e64d22229fe0b192"
+checksum = "ad4eff0be6985b7e709f64b5a541f700e9ad1407190a29f4884319eb663ed1d6"
 dependencies = [
  "cc",
  "libc",
@@ -668,9 +668,9 @@ dependencies = [
 
 [[package]]
 name = "flate2"
-version = "1.0.17"
+version = "1.0.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "766d0e77a2c1502169d4a93ff3b8c15a71fd946cd0126309752104e5f3c46d94"
+checksum = "68c90b0fc46cf89d227cc78b40e494ff81287a92dd07631e5af0d06fe3cf885e"
 dependencies = [
  "cfg-if",
  "crc32fast",
@@ -1307,9 +1307,9 @@ dependencies = [
 
 [[package]]
 name = "libz-sys"
-version = "1.1.0"
+version = "1.0.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af67924b8dd885cccea261866c8ce5b74d239d272e154053ff927dae839f5ae9"
+checksum = "6ca8894883d250240341478bf987467332fbdd5da5c42426c69a8f93dbc302f2"
 dependencies = [
  "cc",
  "libc",
@@ -1547,9 +1547,9 @@ checksum = "1ab52be62400ca80aa00285d25253d7f7c437b7375c4de678f5405d3afe82ca5"
 
 [[package]]
 name = "once_cell"
-version = "1.4.1"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "260e51e7efe62b592207e9e13a68e43692a7a279171d6ba57abd208bf23645ad"
+checksum = "0b631f7e854af39a1739f401cf34a8a013dfe09eac4fa4dba91e9768bd28168d"
 
 [[package]]
 name = "oorandom"
@@ -2516,9 +2516,9 @@ dependencies = [
 
 [[package]]
 name = "tinyvec"
-version = "0.3.4"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "238ce071d267c5710f9d31451efec16c5ee22de34df17cc05e56cbc92e967117"
+checksum = "53953d2d3a5ad81d9f844a32f14ebb121f50b650cd59d0ee2a07cf13c617efed"
 
 [[package]]
 name = "tokio"