diff --git a/crates/executor/client/src/lib.rs b/crates/executor/client/src/lib.rs
index cdb117c..34a1e6c 100644
--- a/crates/executor/client/src/lib.rs
+++ b/crates/executor/client/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(stmt_expr_attributes)]
-
 pub mod io;
 #[macro_use]
 pub mod utils;
diff --git a/rust-toolchain b/rust-toolchain
deleted file mode 100644
index 39c9c4b..0000000
--- a/rust-toolchain
+++ /dev/null
@@ -1,3 +0,0 @@
-[toolchain]
-channel = "nightly-2024-08-06"
-components = ["llvm-tools", "rustc-dev"]
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000..e10c45a
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,3 @@
+[toolchain]
+channel = "1.81.0"
+components = ["rustfmt"]