diff --git a/Cargo.lock b/Cargo.lock
index d6e4eea..316a165 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -198,14 +198,13 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.2"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bae8f328835f8f5a6ceb6a7842a7f2d0c03692adb5c889347235d59194731fe3"
+checksum = "e7e9d99fa91428effe99c5c6d4634cdeba32b8cf784fc428a2a687f61a952c49"
 dependencies = [
  "autocfg",
  "cfg-if 1.0.0",
  "lazy_static",
- "loom",
 ]
 
 [[package]]
@@ -332,19 +331,6 @@ dependencies = [
  "waker-fn",
 ]
 
-[[package]]
-name = "generator"
-version = "0.6.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9fed24fd1e18827652b4d55652899a1e9da8e54d91624dc3437a5bc3a9f9a9c"
-dependencies = [
- "cc",
- "libc",
- "log",
- "rustversion",
- "winapi",
-]
-
 [[package]]
 name = "getrandom"
 version = "0.2.2"
@@ -429,17 +415,6 @@ dependencies = [
  "cfg-if 1.0.0",
 ]
 
-[[package]]
-name = "loom"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d44c73b4636e497b4917eb21c33539efa3816741a2d3ff26c6316f1b529481a4"
-dependencies = [
- "cfg-if 1.0.0",
- "generator",
- "scoped-tls",
-]
-
 [[package]]
 name = "memchr"
 version = "2.3.4"
@@ -641,18 +616,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "rustversion"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cb5d2a036dc6d2d8fd16fde3498b04306e29bd193bf306a57427019b823d5acd"
-
-[[package]]
-name = "scoped-tls"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea6a9290e3c9cf0f18145ef7ffa62d68ee0bf5fcd651017e586dc7fd5da448c2"
-
 [[package]]
 name = "scopeguard"
 version = "1.1.0"