diff --git a/Cargo.lock b/Cargo.lock
index 44945bb..661b4d0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "CoreFoundation-sys"
 version = "0.1.4"
@@ -712,9 +714,9 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.0.1"
+version = "1.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d258221f566b6c803c7b4714abadc080172b272090cdc5e244a6d4dd13c3a6bd"
+checksum = "50dae83881bc9b0403dd5b44ea9deed3e939856cc8722d5be37f0d6e5c6d53dd"
 dependencies = [
  "autocfg",
  "num_cpus",
diff --git a/Cargo.toml b/Cargo.toml
index b946bfb..640f750 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,7 +10,7 @@ crate-type = ["cdylib"]
 napi = { version = "1.0.1", features = ["tokio_rt"] }
 napi-derive = "1"
 serialport = "4.0.0"
-tokio = "1.0.1"
+tokio = "1.8.4"
 
 [build-dependencies]
 napi-build = "1"