diff --git a/Cargo.lock b/Cargo.lock
index ec8e85d7e..a252695fa 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -145,9 +145,9 @@ checksum = "67c21572b4949434e4fc1e1978b99c5f77064153c59d998bf13ecd96fb5ecba7"
 
 [[package]]
 name = "libc"
-version = "0.2.83"
+version = "0.2.84"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7eb0c4e9c72ee9d69b767adebc5f4788462a3b45624acd919475c92597bcaf4f"
+checksum = "1cca32fa0182e8c0989459524dc356b8f2b5c10f1b9eb521b7d182c03cf8c5ff"
 
 [[package]]
 name = "md-5"
diff --git a/sha1/Cargo.toml b/sha1/Cargo.toml
index 443a3141a..65fdacbbc 100644
--- a/sha1/Cargo.toml
+++ b/sha1/Cargo.toml
@@ -25,7 +25,7 @@ sha1-asm = { version = "0.4", optional = true }
 cpuid-bool = "0.1"
 
 [target.'cfg(all(target_arch = "aarch64", target_os = "linux"))'.dependencies]
-libc = { version = "0.2.83", optional = true }
+libc = { version = "0.2.84", optional = true }
 
 [dev-dependencies]
 digest = { version = "0.9", features = ["dev"] }
diff --git a/sha2/Cargo.toml b/sha2/Cargo.toml
index 87db32e46..85217e159 100644
--- a/sha2/Cargo.toml
+++ b/sha2/Cargo.toml
@@ -25,7 +25,7 @@ sha2-asm = { version = "0.5", optional = true }
 cpuid-bool = "0.1"
 
 [target.'cfg(all(target_arch = "aarch64", target_os = "linux"))'.dependencies]
-libc = { version = "0.2.83", optional = true }
+libc = { version = "0.2.84", optional = true }
 
 [dev-dependencies]
 digest = { version = "0.9", features = ["dev"] }