diff --git a/rust-version b/rust-version
index f5fb7087402..6e9f26cbe41 100644
--- a/rust-version
+++ b/rust-version
@@ -1 +1 @@
-18b0585b52741ca158dfebef7968326e2704352e
+d9cd4a33f53689bc0847775669a14f666a138fd7
diff --git a/tests/run-pass/stacked-borrows/interior_mutability.rs b/tests/run-pass/stacked-borrows/interior_mutability.rs
index bd19f153dee..17e628a09f2 100644
--- a/tests/run-pass/stacked-borrows/interior_mutability.rs
+++ b/tests/run-pass/stacked-borrows/interior_mutability.rs
@@ -54,7 +54,7 @@ fn into_interior_mutability() {
     let mut x: MaybeUninit<(Cell<u32>, u32)> = MaybeUninit::uninit();
     x.as_ptr();
     x.write((Cell::new(0), 1));
-    let ptr = unsafe { x.get_ref() };
+    let ptr = unsafe { x.assume_init_ref() };
     assert_eq!(ptr.1, 1);
 }