diff --git a/Cargo.lock b/Cargo.lock
index 215235c..0030b00 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -633,9 +633,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.177"
+version = "0.2.186"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2874a2af47a2325c2001a6e6fad9b16a53b802102b528163885171cf92b15976"
+checksum = "68ab91017fe16c622486840e4c83c9a37afeff978bd239b5293d61ece587de66"
 
 [[package]]
 name = "libusb1-sys"