diff --git a/Cargo.lock b/Cargo.lock
index 1124421e90..03b736b76d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6231,9 +6231,9 @@ dependencies = [
 
 [[package]]
 name = "sysctl"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "963488c73b34185a9028742c2be0219ed1d8558e59f85c3b466a4f54affba936"
+checksum = "feb3f7a32e17639e3705d2e05da40f485877cb97fdf0f3240e519e525e6cdb4d"
 dependencies = [
  "bitflags",
  "byteorder",
diff --git a/sys-tuner/Cargo.toml b/sys-tuner/Cargo.toml
index c36b2a2c3a..e647ded89e 100644
--- a/sys-tuner/Cargo.toml
+++ b/sys-tuner/Cargo.toml
@@ -21,7 +21,7 @@ solana-version = { path = "../version", version = "=1.9.0" }
 unix_socket2 = "0.5.4"
 users = "0.10.0"
 nix = "0.23.0"
-sysctl = "0.4.2"
+sysctl = "0.4.3"
 
 [lib]
 name = "solana_sys_tuner"
diff --git a/validator/Cargo.toml b/validator/Cargo.toml
index 260d362617..f217647c07 100644
--- a/validator/Cargo.toml
+++ b/validator/Cargo.toml
@@ -57,7 +57,7 @@ jemallocator = {package = "tikv-jemallocator", version = "0.4.1", features = ["u
 [target."cfg(unix)".dependencies]
 libc = "0.2.106"
 signal-hook = "0.3.10"
-sysctl = "0.4.2"
+sysctl = "0.4.3"
 
 [package.metadata.docs.rs]
 targets = ["x86_64-unknown-linux-gnu"]