diff --git a/Cargo.lock b/Cargo.lock
index 736f784..646e30f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -14,9 +14,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.162"
+version = "0.2.166"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "18d287de67fe55fd7e1581fe933d965a5a9477b38e949cfa9f8574ef01506398"
+checksum = "c2ccc108bbc0b1331bd061864e7cd823c0cab660bbe6970e66e2c0614decde36"
 
 [[package]]
 name = "mach"
diff --git a/Cargo.toml b/Cargo.toml
index a093d97..5efde2e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ features = [
 ]
 
 [target.'cfg(any(target_os = "linux", target_os = "macos", target_os = "ios"))'.dependencies]
-libc = "0.2.162"
+libc = "0.2.166"
 
 [target.'cfg(any(target_os = "macos", target_os = "ios"))'.dependencies.mach]
 version = "0.3"