diff --git a/Cargo.lock b/Cargo.lock
index 9f71511..8bdaf0a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -80,9 +80,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "clang-sys"
-version = "1.4.0"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa2e27ae6ab525c3d369ded447057bca5438d86dc3a68f6faafb8269ba82ebf3"
+checksum = "77ed9a53e5d4d9c573ae844bfac6872b159cb1d1585a83b29e7a64b7eef7332a"
 dependencies = [
  "glob",
  "libc",