diff --git a/Cargo.lock b/Cargo.lock
index 70e79f01..24b1758d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -788,9 +788,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.136"
+version = "0.2.137"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "55edcf6c0bb319052dea84732cf99db461780fd5e8d3eb46ab6ff312ab31f197"
+checksum = "fc7fcc620a3bff7cdd7a365be3376c97191aeaccc2a603e600951e452615bf89"
 
 [[package]]
 name = "link-cplusplus"
@@ -1158,9 +1158,9 @@ dependencies = [
 
 [[package]]
 name = "pkg-config"
-version = "0.3.25"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1df8c4ec4b0627e53bdf214615ad287367e482558cf84b109250b37464dc03ae"
+checksum = "6ac9a59f73473f1b8d852421e59e64809f025994837ef743615c6d0c5b305160"
 
 [[package]]
 name = "ppv-lite86"