diff --git a/Cargo.lock b/Cargo.lock
index d142f75d2224..f9a29f979ac1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2377,9 +2377,9 @@ dependencies = [
 
 [[package]]
 name = "prost"
-version = "0.12.4"
+version = "0.12.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0f5d036824e4761737860779c906171497f6d55681139d8312388f8fe398922"
+checksum = "deb1435c188b76130da55f17a466d252ff7b1418b2ad3e037d127b94e3411f29"
 dependencies = [
  "bytes",
  "prost-derive",
@@ -2408,9 +2408,9 @@ dependencies = [
 
 [[package]]
 name = "prost-derive"
-version = "0.12.5"
+version = "0.12.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9554e3ab233f0a932403704f1a1d08c30d5ccd931adfdfa1e8b5a19b52c1d55a"
+checksum = "81bddcdb20abf9501610992b6759a4c888aef7d1a7247ef75e2404275ac24af1"
 dependencies = [
  "anyhow",
  "itertools",
diff --git a/crates/shadowsocks-service/Cargo.toml b/crates/shadowsocks-service/Cargo.toml
index 70b1acaf1215..15ec10534b5c 100644
--- a/crates/shadowsocks-service/Cargo.toml
+++ b/crates/shadowsocks-service/Cargo.toml
@@ -134,7 +134,7 @@ byte_string = "1.0"
 byteorder = "1.5"
 rand = { version = "0.8", features = ["small_rng"] }
 sled = { version = "0.34.7", features = ["compression"], optional = true }
-prost = { version = "0.12.4", optional = true }
+prost = { version = "0.12.6", optional = true }
 
 futures = "0.3"
 tokio = { version = "1.5", features = [