diff --git a/rust-toolchain b/rust-toolchain
deleted file mode 100644
index 2bf5ad0..0000000
--- a/rust-toolchain
+++ /dev/null
@@ -1 +0,0 @@
-stable
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000..292fe49
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,2 @@
+[toolchain]
+channel = "stable"