diff --git a/library/core/tests/atomic.rs b/library/core/tests/atomic.rs
index 539982eb0e4..b735957666f 100644
--- a/library/core/tests/atomic.rs
+++ b/library/core/tests/atomic.rs
@@ -61,7 +61,6 @@ fn uint_xor() {
 
 #[test]
 #[cfg(any(not(target_arch = "arm"), target_os = "linux"))] // Missing intrinsic in compiler-builtins
-#[cfg_attr(miri, ignore)] // FIXME: Miri does not support atomic_min
 fn uint_min() {
     let x = AtomicUsize::new(0xf731);
     assert_eq!(x.fetch_min(0x137f, SeqCst), 0xf731);
@@ -72,7 +71,6 @@ fn uint_min() {
 
 #[test]
 #[cfg(any(not(target_arch = "arm"), target_os = "linux"))] // Missing intrinsic in compiler-builtins
-#[cfg_attr(miri, ignore)] // FIXME: Miri does not support atomic_max
 fn uint_max() {
     let x = AtomicUsize::new(0x137f);
     assert_eq!(x.fetch_max(0xf731, SeqCst), 0x137f);
@@ -111,7 +109,6 @@ fn int_xor() {
 
 #[test]
 #[cfg(any(not(target_arch = "arm"), target_os = "linux"))] // Missing intrinsic in compiler-builtins
-#[cfg_attr(miri, ignore)] // FIXME: Miri does not support atomic_min
 fn int_min() {
     let x = AtomicIsize::new(0xf731);
     assert_eq!(x.fetch_min(0x137f, SeqCst), 0xf731);
@@ -122,7 +119,6 @@ fn int_min() {
 
 #[test]
 #[cfg(any(not(target_arch = "arm"), target_os = "linux"))] // Missing intrinsic in compiler-builtins
-#[cfg_attr(miri, ignore)] // FIXME: Miri does not support atomic_max
 fn int_max() {
     let x = AtomicIsize::new(0x137f);
     assert_eq!(x.fetch_max(0xf731, SeqCst), 0x137f);
diff --git a/src/tools/miri b/src/tools/miri
index 39ebb079a8e..2670839e1af 160000
--- a/src/tools/miri
+++ b/src/tools/miri
@@ -1 +1 @@
-Subproject commit 39ebb079a8e1bd9b8838b97bdc1718f4c0be6b48
+Subproject commit 2670839e1af540a496a0d889fce9ad42529ecc11