diff --git a/.gitmodules b/.gitmodules
index 33ea0f53cf132..07fd44c2b2da2 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -33,7 +33,7 @@
 [submodule "src/llvm-project"]
 	path = src/llvm-project
 	url = https://github.com/rust-lang/llvm-project.git
-	branch = rustc/19.1-2024-09-17
+	branch = rustc/19.1-2024-12-03
 	shallow = true
 [submodule "src/doc/embedded-book"]
 	path = src/doc/embedded-book
diff --git a/src/llvm-project b/src/llvm-project
index 104d0d16c3c7c..1268e87bdbaed 160000
--- a/src/llvm-project
+++ b/src/llvm-project
@@ -1 +1 @@
-Subproject commit 104d0d16c3c7c3fef2435fef6efb2d57b70fff73
+Subproject commit 1268e87bdbaed0693a9d782ccd5a21e2cab2de33