diff --git a/build_sysroot/Cargo.lock b/build_sysroot/Cargo.lock
index 51ba0dbfcc7..efee6ef3f37 100644
--- a/build_sysroot/Cargo.lock
+++ b/build_sysroot/Cargo.lock
@@ -112,9 +112,9 @@ dependencies = [
 
 [[package]]
 name = "hashbrown"
-version = "0.12.0"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c21d40587b92fa6a6c6e3c1bdbf87d75511db5672f9c93175574b3a00df1758"
+checksum = "db0d4cf898abf0081f964436dc980e96670a0f36863e4b83aaacdb65c9d7ccc3"
 dependencies = [
  "compiler_builtins",
  "rustc-std-workspace-alloc",
@@ -134,18 +134,18 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.124"
+version = "0.2.125"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21a41fed9d98f27ab1c6d161da622a4fa35e8a54a8adc24bbf3ddd0ef70b0e50"
+checksum = "5916d2ae698f6de9bfb891ad7a8d65c09d232dc58cc4ac433c7da3b2fd84bc2b"
 dependencies = [
  "rustc-std-workspace-core",
 ]
 
 [[package]]
 name = "memchr"
-version = "2.4.1"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 dependencies = [
  "compiler_builtins",
  "rustc-std-workspace-core",
diff --git a/rust-toolchain b/rust-toolchain
index 2fa0ac3f772..30c81d76222 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2022-04-27"
+channel = "nightly-2022-05-07"
 components = ["rust-src", "rustc-dev", "llvm-tools-preview"]