diff --git a/Cargo.lock b/Cargo.lock
index 38aa3658..e349cf93 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3001,13 +3001,13 @@ checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
 [[package]]
 name = "sealed"
-version = "0.6.0"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22f968c5ea23d555e670b449c1c5e7b2fc399fdaec1d304a17cd48e288abc107"
+checksum = "9b68e2ea526d9fb32f23ca8894fb5da9e743f34c2f41701f0501dc8a25c4b343"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.118",
+ "syn 3.0.0",
 ]
 
 [[package]]
diff --git a/crates/shadowsocks/Cargo.toml b/crates/shadowsocks/Cargo.toml
index 455eada1..882a15d0 100644
--- a/crates/shadowsocks/Cargo.toml
+++ b/crates/shadowsocks/Cargo.toml
@@ -78,7 +78,7 @@ percent-encoding = "2.1"
 futures = "0.3"
 trait-variant = "0.1"
 dynosaur = "0.3.0"
-sealed = "0.6"
+sealed = "0.7"
 
 socket2 = { version = "0.6", features = ["all"] }
 tokio = { version = "1.9.0", features = [