diff --git a/rust-toolchain b/rust-toolchain
index 1d2cad667511..c97b5ec6609b 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2021-11-08"
+channel = "nightly-2021-12-20"
 components = ["rustc-dev"]