diff --git a/Cargo.lock b/Cargo.lock
index 04a2604..dfefa4d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1652,9 +1652,9 @@ checksum = "eb9f9e6e233e5c4a35559a617bf40a4ec447db2e84c20b55a6f83167b7e57872"
 
 [[package]]
 name = "prettyplease"
-version = "0.1.20"
+version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83fead41e178796ef8274dc612a7d8ce4c7e10ca35cd2c5b5ad24cac63aeb6c0"
+checksum = "c142c0e46b57171fe0c528bee8c5b7569e80f0c17e377cd0e30ea57dbc11bb51"
 dependencies = [
  "proc-macro2",
  "syn",
@@ -1686,9 +1686,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.46"
+version = "1.0.47"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94e2ef8dbfc347b10c094890f778ee2e36ca9bb4262e86dc99cd217e35f3470b"
+checksum = "5ea3d908b0e36316caf9e9e2c4625cdde190a7e6f440d794667ed17a1855e725"
 dependencies = [
  "unicode-ident",
 ]