diff --git a/Cargo.lock b/Cargo.lock
index fac3d1f..a65ee4b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -117,9 +117,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.165"
+version = "0.2.166"
 source = "registry+/~https://github.com/rust-lang/crates.io-index"
-checksum = "fcb4d3d38eab6c5239a362fa8bae48c03baf980a6e7079f063942d563ef3533e"
+checksum = "c2ccc108bbc0b1331bd061864e7cd823c0cab660bbe6970e66e2c0614decde36"
 
 [[package]]
 name = "libloading"
diff --git a/Cargo.toml b/Cargo.toml
index fdad128..bd7421d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -50,7 +50,7 @@ widestring = "1.1.0"
 tracing = { version = "0.1.41", features = ["attributes"] }
 
 [target.'cfg(unix)'.dependencies]
-libc = "0.2.165"
+libc = "0.2.166"
 
 [[example]]
 name = "domain"