diff --git a/Cargo.toml b/Cargo.toml
index 1fc0e7a0..4f2a4c57 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,21 +8,22 @@ license     = "Apache-2.0"
 name        = "casbin"
 readme      = "README.md"
 repository  = "https://github.com/casbin/casbin-rs"
-version     = "2.0.7"
+version     = "2.0.8"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
 async-std   = { version = "1.9.0", optional = true }
-async-trait = "0.1.48"
-globset     = { version = "0.4.6", optional = true }
-ritelinked  = { version = "0.3.0", default-features = false, features = ["ahash", "inline-more"] }
+
+async-trait = "0.1.51"
+globset     = { version = "0.4.8", optional = true }
+ritelinked  = { version = "0.3.1", default-features = false, features = ["ahash", "inline-more"] }
 ip_network  = { version = "0.4.0", optional = true }
 lazy_static = "1.4.0"
-lru         = { version = "0.6.5", optional = true }
+lru         = { version = "0.6.6", optional = true }
 parking_lot = "0.11"
-regex       = "1.4.5"
-rhai        = { version = "1.0.0", features = [
+regex       = "1.5.4"
+rhai        = { version = "1.0.2", features = [
     "sync",
     "only_i32",
     "no_function",
@@ -32,12 +33,12 @@ rhai        = { version = "1.0.0", features = [
     "serde",
     "unchecked",
 ] }
-serde       = "1.0.125"
+serde       = "1.0.127"
 slog        = { version = "2.7.0", optional = true }
 slog-async  = { version = "2.6.0", optional = true }
 slog-term   = { version = "2.8.0", optional = true }
-thiserror   = "1.0.24"
-tokio       = { version = "1.5.0", optional = true, default-features = false }
+thiserror   = "1.0.26"
+tokio       = { version = "1.10.0", optional = true, default-features = false }
 tokio-stream = { version = "0.1", optional = true, default-features = false }
 
 [features]
@@ -56,12 +57,12 @@ watcher           = []
 
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
 async-std = { version = "1.9.0", features = ["attributes"] }
-serde     = { version = "1.0.125", features = ["derive"] }
+serde     = { version = "1.0.127", features = ["derive"] }
 
 [target.'cfg(not(target_arch = "wasm32"))'.dev-dependencies]
 async-std = { version = "1.9.0", features = ["attributes"] }
-serde     = { version = "1.0.125", features = ["derive"] }
-tokio     = { version = "1.5.0", features = ["full"] }
+serde     = { version = "1.0.127", features = ["derive"] }
+tokio     = { version = "1.10.0", features = ["full"] }
 
 [profile.release]
 codegen-units = 1
diff --git a/README.md b/README.md
index 465ef786..161e4559 100644
--- a/README.md
+++ b/README.md
@@ -33,8 +33,8 @@ Add this package to `Cargo.toml` of your project. (Check https://crates.io/crate
 
 ```toml
 [dependencies]
-casbin = { version = "2.0.7", default-features = false, features = ["runtime-async-std", "logging", "incremental"] }
-tokio = { version = "1.4.0", features = ["fs", "io-util"] }
+casbin = { version = "2.0.8", default-features = false, features = ["runtime-async-std", "logging", "incremental"] }
+tokio = { version = "1.10.0", features = ["fs", "io-util"] }
 ```
 
 **Warning**: `tokio v1.0` or later is supported from `casbin v2.0.6`, we recommend that you upgrade the relevant components to ensure that they work properly. The last version that supports `tokio v0.2` is `casbin v2.0.5` , you can choose according to your needs.