diff --git a/Cargo.lock b/Cargo.lock
index 375bda5..207cae2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "ahash"
@@ -759,11 +759,10 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "1.4.0"
+version = "1.16.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "134af885d758d645f0f0505c9a8b3f9bf8a348fd822e112ab5248138348f1722"
+checksum = "0c27a64b625de6d309e8c57716ba93021dccf1b3b5c97edd6d3dd2d2135afc0a"
 dependencies = [
- "autocfg",
  "bytes",
  "libc",
  "memchr",
@@ -779,9 +778,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-macros"
-version = "1.1.0"
+version = "1.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "caf7b11a536f46a809a8a9f0bb4237020f70ecbf115b842360afb127ea2fda57"
+checksum = "d266c00fde287f55d3f1c3e96c500c362a2b8c695076ec180f27918820bc6df8"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index 1831b79..f6b17cb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,12 +14,12 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0.64"
 async-trait = "0.1.40"
 casbin = { git = "https://github.com/casbin/casbin-rs" }
-tokio = { version = "1.2.0", default-features = false, optional = true }
+tokio = { version = "1.16.1", default-features = false, optional = true }
 async-std = { version = "1.6.4", default-features = false, optional = true }
 
 [dev-dependencies]
 async-std = { version = "1.6.4", features = [ "attributes" ] }
-tokio = { version = "1.2.0", features = [ "full" ] }
+tokio = { version = "1.16.1", features = [ "full" ] }
 
 [features]
 default = ["runtime-tokio"]