diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7d8e949a..f3705792 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -111,6 +111,7 @@ jobs:
           - x86_64-unknown-redox
           - wasm32-unknown-emscripten
           - wasm32-wasip2
+          - thumbv8m.main-nuttx-eabihf
     steps:
     - uses: actions/checkout@v4
     - uses: dtolnay/rust-toolchain@nightly
diff --git a/Cargo.toml b/Cargo.toml
index 8475c67d..f95929e7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -50,7 +50,7 @@ targets = [
 features = ["all"]
 
 [target.'cfg(any(unix, target_os = "wasi"))'.dependencies]
-libc = "0.2.172"
+libc = "0.2.189"
 
 [target.'cfg(windows)'.dependencies.windows-sys]
 version = ">=0.60, <0.62"
diff --git a/src/sys/unix.rs b/src/sys/unix.rs
index a226fe13..65e494bc 100644
--- a/src/sys/unix.rs
+++ b/src/sys/unix.rs
@@ -1562,6 +1562,7 @@ impl crate::Socket {
             target_os = "tvos",
             target_os = "watchos",
             target_os = "wasi",
+            target_os = "nuttx",
             target_os = "horizon"
         ),
         allow(rustdoc::broken_intra_doc_links)