diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 5d56faf..d963894 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "nightly"
+channel = "nightly-2021-10-14"