diff --git a/.gitmodules b/.gitmodules
index e22d5762790..c60a0dd2c7c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -34,7 +34,7 @@
 [submodule "src/llvm-project"]
 	path = src/llvm-project
 	url = https://github.com/rust-lang/llvm-project.git
-	branch = rustc/13.0-2021-08-08
+	branch = rustc/13.0-2021-09-30
 [submodule "src/doc/embedded-book"]
 	path = src/doc/embedded-book
 	url = https://github.com/rust-embedded/book.git
diff --git a/src/llvm-project b/src/llvm-project
index 522c3e3d9c0..a7348ae0df3 160000
--- a/src/llvm-project
+++ b/src/llvm-project
@@ -1 +1 @@
-Subproject commit 522c3e3d9c097b53ede7682cc28544b461597b20
+Subproject commit a7348ae0df3c71581dbe3d355fc0fb6ce6332dd0