diff --git a/Cargo.lock b/Cargo.lock
index 35503dd..718920c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -327,9 +327,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.106"
+version = "0.2.139"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a60553f9a9e039a333b4e9b20573b9e9b9c0bb3a11e201ccc48ef4283456d673"
+checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
 
 [[package]]
 name = "log"