diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index b39fe511d..f56a9ef78 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,5 +1,5 @@
 [toolchain]
 # Needed nightly features:
 # - cargo `Z-bindeps` to build and embed preload shared libraries as dependencies of fspy
-channel = "nightly-2026-08-02"
+channel = "nightly-2026-09-28"
 profile = "default"