diff --git a/src/tools/miri/rust-version b/src/tools/miri/rust-version
index 5adbfbfebfb..bec28af6257 100644
--- a/src/tools/miri/rust-version
+++ b/src/tools/miri/rust-version
@@ -1 +1 @@
-328b759142ddeae96da83176f103200009d3e3f1
+668959740f97e7a22ae340742886d330ab63950f