diff --git a/.cargo/audit.toml b/.cargo/audit.toml
index 4fd083d94..d03b022ef 100644
--- a/.cargo/audit.toml
+++ b/.cargo/audit.toml
@@ -4,4 +4,7 @@
 ignore = [
     # https://github.com/tokio-rs/tokio/issues/4177
     "RUSTSEC-2020-0159",
+    # We depend on nix 0.22 only via mio-aio, a dev-dependency.
+    # https://github.com/tokio-rs/tokio/pull/4255#issuecomment-974786349
+    "RUSTSEC-2021-0119",
 ]
diff --git a/tokio/Cargo.toml b/tokio/Cargo.toml
index 348ec4657..5b18d4095 100644
--- a/tokio/Cargo.toml
+++ b/tokio/Cargo.toml
@@ -110,7 +110,7 @@ signal-hook-registry = { version = "1.1.1", optional = true }
 
 [target.'cfg(unix)'.dev-dependencies]
 libc = { version = "0.2.42" }
-nix = { version = "0.22.0" }
+nix = { version = "0.23" }
 
 [target.'cfg(windows)'.dependencies.winapi]
 version = "0.3.8"