diff --git a/Cargo.lock b/Cargo.lock
index f483d89..26a99d0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2094,15 +2094,15 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.18.0"
+version = "1.20.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0f48b6d60512a392e34dbf7fd456249fd2de3c83669ab642e021903f4015185b"
+checksum = "eb78f30e4b41e98ca4cce5acb51168a033839a7af9e42b380355808e14e98ee0"
 dependencies = [
+ "autocfg",
  "bytes",
  "libc",
  "memchr",
  "mio 0.8.2",
- "once_cell",
  "parking_lot",
  "pin-project-lite",
  "signal-hook-registry",