diff --git a/crates/shadowsocks-service/Cargo.toml b/crates/shadowsocks-service/Cargo.toml
index 32153ca03a45..965844756981 100644
--- a/crates/shadowsocks-service/Cargo.toml
+++ b/crates/shadowsocks-service/Cargo.toml
@@ -165,7 +165,7 @@ rustls-native-certs = { version = "0.8", optional = true }
 async-trait = "0.1"
 
 socket2 = { version = "0.5", features = ["all"] }
-libc = "0.2.159"
+libc = "~0.2.141"
 
 hyper = { version = "1.4", optional = true, features = ["full"] }
 http-body-util = { version = "0.1", optional = true }
diff --git a/crates/shadowsocks/Cargo.toml b/crates/shadowsocks/Cargo.toml
index 35b3a4cc344c..a63c4f211c58 100644
--- a/crates/shadowsocks/Cargo.toml
+++ b/crates/shadowsocks/Cargo.toml
@@ -48,7 +48,7 @@ security-replay-attack-detect = ["bloomfilter"]
 [dependencies]
 log = "0.4"
 
-libc = "0.2.159"
+libc = "~0.2.141"
 bytes = "1.7"
 cfg-if = "1"
 byte_string = "1.0"