diff --git a/rust-toolchain b/rust-toolchain
deleted file mode 100644
index 9eed51006fc6a182f0c8aa1eb88acfad9f5e869a..0000000000000000000000000000000000000000
--- a/rust-toolchain
+++ /dev/null
@@ -1 +0,0 @@
-nightly-2022-03-18
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000000000000000000000000000000000000..87f6fe713d75640775c9eb10ffb4dfa7ecd01752
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,3 @@
+[toolchain]
+channel = "nightly-2023-01-21"
+components = ["rust-src"]