diff --git a/src/doc/rustc-dev-guide/rust-version b/src/doc/rustc-dev-guide/rust-version
index e444613e6311..3f10132b684b 100644
--- a/src/doc/rustc-dev-guide/rust-version
+++ b/src/doc/rustc-dev-guide/rust-version
@@ -1 +1 @@
-c96a69059ecc618b519da385a6ccd03155aa0237
+fd2eb391d032181459773f3498c17b198513e0d0