diff --git a/src/tools/miri/rust-version b/src/tools/miri/rust-version
index 2bc38eebfc29..437d4218cfad 100644
--- a/src/tools/miri/rust-version
+++ b/src/tools/miri/rust-version
@@ -1 +1 @@
-792fc2b033aea7ea7b766e38bdc40f7d6bdce8c3
+81a964c23ea4fe9ab52b4449bb166bf280035797