diff --git a/xde/rust-toolchain.toml b/xde/rust-toolchain.toml
index 89c286e8..d16061c5 100644
--- a/xde/rust-toolchain.toml
+++ b/xde/rust-toolchain.toml
@@ -1,5 +1,5 @@
 [toolchain]
-channel = "nightly-2026-04-01"
+channel = "nightly-2026-05-23"
 target = "x86_64-unknown-illumos"
 components = [ "clippy", "rustfmt", "rust-src" ]
 profile = "minimal"