diff --git a/Cargo.lock b/Cargo.lock
index 1f5f5e4..ec2ec79 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -39,9 +39,9 @@ checksum = "1b8e56985ec62d17e9c1001dc89c88ecd7dc08e47eba5ec7c29c7b5eeecde967"
 
 [[package]]
 name = "cc"
-version = "1.2.26"
+version = "1.2.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "956a5e21988b87f372569b66183b78babf23ebc2e744b733e4350a752c4dafac"
+checksum = "d487aa071b5f64da6f19a3e848e3578944b726ee5a4854b82172f02aa876bfdc"
 dependencies = [
  "shlex",
 ]
@@ -116,9 +116,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.172"
+version = "0.2.173"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d750af042f7ef4f724306de029d18836c26c1765a54a6a3f094cbd23a7267ffa"
+checksum = "d8cfeafaffdbc32176b64fb251369d52ea9f0a8fbc6f8759edffef7b525d64bb"
 
 [[package]]
 name = "libloading"
@@ -183,9 +183,9 @@ dependencies = [
 
 [[package]]
 name = "prettyplease"
-version = "0.2.33"
+version = "0.2.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9dee91521343f4c5c6a63edd65e54f31f5c92fe8978c40a4282f8372194c6a7d"
+checksum = "6837b9e10d61f45f987d50808f83d1ee3d206c66acf650c3e4ae2e1f6ddedf55"
 dependencies = [
  "proc-macro2",
  "syn",