diff --git a/rust-version b/rust-version
index 53e7908f42c..2a26cb60823 100644
--- a/rust-version
+++ b/rust-version
@@ -1 +1 @@
-1517f5de01c445b5124b30f02257b02b4c5ef3b2
+c396bb3b8a16b1f2762b7c6078dc3e023f6a2493
diff --git a/tests/fail/data_race/enable_after_join_to_main.rs b/tests/fail/data_race/enable_after_join_to_main.rs
index 757a41adc93..290589690a3 100644
--- a/tests/fail/data_race/enable_after_join_to_main.rs
+++ b/tests/fail/data_race/enable_after_join_to_main.rs
@@ -1,3 +1,5 @@
+// We want to control preemption here.
+//@compile-flags: -Zmiri-preemption-rate=0
 //@ignore-windows: Concurrency on Windows is not supported yet.
 
 use std::thread::spawn;