diff --git a/Cargo.lock b/Cargo.lock
index 0552ea2f4a8..bc67e8e3213 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1975,9 +1975,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.121"
+version = "0.2.122"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "efaa7b300f3b5fe8eb6bf21ce3895e1751d9665086af2d64b42f19701015ff4f"
+checksum = "ec647867e2bf0772e28c8bcde4f0d19a9216916e890543b5a03ed8ef27b8f259"
 
 [[package]]
 name = "libsqlite3-sys"
diff --git a/nexus/Cargo.toml b/nexus/Cargo.toml
index 8a2be4ec55e..90a4981da89 100644
--- a/nexus/Cargo.toml
+++ b/nexus/Cargo.toml
@@ -25,7 +25,7 @@ hyper = "0.14"
 db-macros = { path = "src/db/db-macros" }
 ipnetwork = "0.18"
 lazy_static = "1.4.0"
-libc = "0.2.119"
+libc = "0.2.122"
 macaddr = { version = "1.0.1", features = [ "serde_std" ]}
 mime_guess = "2.0.4"
 newtype_derive = "0.1.6"
diff --git a/test-utils/Cargo.toml b/test-utils/Cargo.toml
index 56bcf8e3aa5..ce7a211fc69 100644
--- a/test-utils/Cargo.toml
+++ b/test-utils/Cargo.toml
@@ -7,7 +7,7 @@ license = "MPL-2.0"
 [dependencies]
 anyhow = "1.0"
 futures = "0.3.21"
-libc = "0.2.119"
+libc = "0.2.122"
 omicron-common = { path = "../common" }
 postgres-protocol = "0.6.3"
 signal-hook = "0.3"