diff --git a/src/tools/miri/tests/fail/intrinsics/unchecked_add1.rs b/src/tools/miri/tests/fail/intrinsics/unchecked_add1.rs
index 13265d0fb0ee4..3f8b4e55151ec 100644
--- a/src/tools/miri/tests/fail/intrinsics/unchecked_add1.rs
+++ b/src/tools/miri/tests/fail/intrinsics/unchecked_add1.rs
@@ -1,5 +1,3 @@
-#![feature(unchecked_math)]
-
 fn main() {
     // MAX overflow
     let _val = unsafe { 40000u16.unchecked_add(30000) }; //~ ERROR: overflow executing `unchecked_add`
diff --git a/src/tools/miri/tests/fail/intrinsics/unchecked_add2.rs b/src/tools/miri/tests/fail/intrinsics/unchecked_add2.rs
index 229f50321d7df..3283dbf8e7ef3 100644
--- a/src/tools/miri/tests/fail/intrinsics/unchecked_add2.rs
+++ b/src/tools/miri/tests/fail/intrinsics/unchecked_add2.rs
@@ -1,5 +1,3 @@
-#![feature(unchecked_math)]
-
 fn main() {
     // MIN overflow
     let _val = unsafe { (-30000i16).unchecked_add(-8000) }; //~ ERROR: overflow executing `unchecked_add`
diff --git a/src/tools/miri/tests/fail/intrinsics/unchecked_mul1.rs b/src/tools/miri/tests/fail/intrinsics/unchecked_mul1.rs
index 810d3418dc8fe..2feed7759ec1c 100644
--- a/src/tools/miri/tests/fail/intrinsics/unchecked_mul1.rs
+++ b/src/tools/miri/tests/fail/intrinsics/unchecked_mul1.rs
@@ -1,4 +1,3 @@
-#![feature(unchecked_math)]
 fn main() {
     // MAX overflow
     let _val = unsafe { 300u16.unchecked_mul(250u16) }; //~ ERROR: overflow executing `unchecked_mul`
diff --git a/src/tools/miri/tests/fail/intrinsics/unchecked_mul2.rs b/src/tools/miri/tests/fail/intrinsics/unchecked_mul2.rs
index 421019542a95a..42cd509404a55 100644
--- a/src/tools/miri/tests/fail/intrinsics/unchecked_mul2.rs
+++ b/src/tools/miri/tests/fail/intrinsics/unchecked_mul2.rs
@@ -1,4 +1,3 @@
-#![feature(unchecked_math)]
 fn main() {
     // MIN overflow
     let _val = unsafe { 1_000_000_000i32.unchecked_mul(-4) }; //~ ERROR: overflow executing `unchecked_mul`
diff --git a/src/tools/miri/tests/fail/intrinsics/unchecked_sub1.rs b/src/tools/miri/tests/fail/intrinsics/unchecked_sub1.rs
index c6e0066674413..e5178bf4effaa 100644
--- a/src/tools/miri/tests/fail/intrinsics/unchecked_sub1.rs
+++ b/src/tools/miri/tests/fail/intrinsics/unchecked_sub1.rs
@@ -1,4 +1,3 @@
-#![feature(unchecked_math)]
 fn main() {
     // MIN overflow
     let _val = unsafe { 14u32.unchecked_sub(22) }; //~ ERROR: overflow executing `unchecked_sub`
diff --git a/src/tools/miri/tests/fail/intrinsics/unchecked_sub2.rs b/src/tools/miri/tests/fail/intrinsics/unchecked_sub2.rs
index 65aa292e212da..ac9fd1e5d0622 100644
--- a/src/tools/miri/tests/fail/intrinsics/unchecked_sub2.rs
+++ b/src/tools/miri/tests/fail/intrinsics/unchecked_sub2.rs
@@ -1,4 +1,3 @@
-#![feature(unchecked_math)]
 fn main() {
     // MAX overflow
     let _val = unsafe { 30000i16.unchecked_sub(-7000) }; //~ ERROR: overflow executing `unchecked_sub`