diff --git a/c-scape/Cargo.toml b/c-scape/Cargo.toml
index 2c181dc..3bf5879 100644
--- a/c-scape/Cargo.toml
+++ b/c-scape/Cargo.toml
@@ -23,7 +23,7 @@ rustix = { version = "0.38.33", default-features = false, features = ["event", "
 rustix-futex-sync = { version = "0.2.1", features = ["atomic_usize"] }
 memoffset = "0.9.0"
 realpath-ext = { version = "0.1.0", default-features = false }
-origin = { version = "0.18.3", default-features = false, features = ["thread", "init-fini-arrays", "alloc"] }
+origin = { version = "0.18.4", default-features = false, features = ["thread", "init-fini-arrays", "alloc"] }
 # We use the libc crate for C ABI types and constants, but we don't depend on
 # the actual platform libc.
 libc = { version = "0.2.138", default-features = false }
diff --git a/c-scape/src/lib.rs b/c-scape/src/lib.rs
index 394bee1..fd29d11 100644
--- a/c-scape/src/lib.rs
+++ b/c-scape/src/lib.rs
@@ -5,11 +5,11 @@
 #![cfg_attr(feature = "use-compiler-builtins", feature(rustc_private))]
 #![feature(strict_provenance)]
 #![feature(exposed_provenance)]
-#![feature(inline_const)]
 #![feature(sync_unsafe_cell)]
 #![feature(linkage)]
 #![feature(naked_functions)]
 #![deny(fuzzy_provenance_casts, lossy_provenance_casts)]
+#![allow(unexpected_cfgs)]
 
 // Check that our features were used as we intend.
 #[cfg(all(feature = "coexist-with-libc", feature = "take-charge"))]
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index e51ce31..30a2c63 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2024-04-21"
+channel = "nightly-2024-05-16"
 components = ["rustc", "cargo", "rust-std", "rust-src", "rustfmt"]