diff --git a/Cargo.lock b/Cargo.lock
index 5d13b9c4b..b6848c409 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1305,9 +1305,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.165"
+version = "0.2.166"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fcb4d3d38eab6c5239a362fa8bae48c03baf980a6e7079f063942d563ef3533e"
+checksum = "c2ccc108bbc0b1331bd061864e7cd823c0cab660bbe6970e66e2c0614decde36"
 
 [[package]]
 name = "libloading"
diff --git a/fuzz/Cargo.lock b/fuzz/Cargo.lock
index 724e0db7e..d5372d79b 100644
--- a/fuzz/Cargo.lock
+++ b/fuzz/Cargo.lock
@@ -416,9 +416,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.165"
+version = "0.2.166"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fcb4d3d38eab6c5239a362fa8bae48c03baf980a6e7079f063942d563ef3533e"
+checksum = "c2ccc108bbc0b1331bd061864e7cd823c0cab660bbe6970e66e2c0614decde36"
 
 [[package]]
 name = "libfuzzer-sys"