diff --git a/Cargo.lock b/Cargo.lock
index 66dc9d4a8..8b87febdd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -691,9 +691,9 @@ dependencies = [
 
 [[package]]
 name = "pkg-config"
-version = "0.3.19"
+version = "0.3.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3831453b3449ceb48b6d9c7ad7c96d5ea673e9b470a1dc578c2ce6521230884c"
+checksum = "7c9b1041b4387893b91ee6746cddfc28516aff326a3519fb2adf820932c5e6cb"
 
 [[package]]
 name = "pnet"