diff --git a/build_system/prepare.rs b/build_system/prepare.rs
index 7994ccc9ed7..722843903bb 100644
--- a/build_system/prepare.rs
+++ b/build_system/prepare.rs
@@ -28,11 +28,11 @@ pub(crate) fn prepare() {
     );
 
     clone_repo(
-        "stdsimd",
-        "https://github.com/rust-lang/stdsimd",
-        "be96995d8ddec03fac9a0caf4d4c51c7fbc33507",
+        "portable-simd",
+        "https://github.com/rust-lang/portable-simd",
+        "d42875302dd9e924f8d667b32e88989388989b79",
     );
-    apply_patches("stdsimd", Path::new("stdsimd"));
+    apply_patches("portable-simd", Path::new("portable-simd"));
 
     clone_repo(
         "simple-raytracer",
diff --git a/patches/0001-stdsimd-Disable-unsupported-tests.patch b/patches/0001-portable-simd-Disable-unsupported-tests.patch
similarity index 78%
rename from patches/0001-stdsimd-Disable-unsupported-tests.patch
rename to patches/0001-portable-simd-Disable-unsupported-tests.patch
index 731c60fda58..6c527833693 100644
--- a/patches/0001-stdsimd-Disable-unsupported-tests.patch
+++ b/patches/0001-portable-simd-Disable-unsupported-tests.patch
@@ -4,21 +4,20 @@ Date: Sun, 25 Jul 2021 18:39:31 +0200
 Subject: [PATCH] Disable unsupported tests
 
 ---
- crates/core_simd/src/array.rs        |  2 ++
- crates/core_simd/src/lib.rs          |  2 +-
+ crates/core_simd/src/vector.rs        |  2 ++
  crates/core_simd/src/math.rs         |  4 ++++
  crates/core_simd/tests/masks.rs      | 12 ------------
  crates/core_simd/tests/ops_macros.rs |  6 ++++++
  crates/core_simd/tests/round.rs      |  2 ++
  6 files changed, 15 insertions(+), 13 deletions(-)
 
-diff --git a/crates/core_simd/src/array.rs b/crates/core_simd/src/array.rs
+diff --git a/crates/core_simd/src/vector.rs b/crates/core_simd/src/vector.rs
 index 25c5309..2b3d819 100644
---- a/crates/core_simd/src/array.rs
-+++ b/crates/core_simd/src/array.rs
+--- a/crates/core_simd/src/vector.rs
++++ b/crates/core_simd/src/vector.rs
 @@ -22,6 +22,7 @@ where
-     #[must_use]
-     fn splat(val: Self::Scalar) -> Self;
+         self.0
+     }
  
 +    /*
      /// SIMD gather: construct a SIMD vector by reading from a slice, using potentially discontiguous indices.
@@ -31,27 +30,14 @@ index 25c5309..2b3d819 100644
 +    */
  }
  
- macro_rules! impl_simdarray_for {
-diff --git a/crates/core_simd/src/lib.rs b/crates/core_simd/src/lib.rs
-index a64904d..299eb11 100644
---- a/crates/core_simd/src/lib.rs
-+++ b/crates/core_simd/src/lib.rs
-@@ -1,7 +1,7 @@
- #![no_std]
- #![allow(incomplete_features)]
- #![feature(
--    const_generics, 
-+    const_generics,
-     platform_intrinsics,
-     repr_simd,
-     simd_ffi,
+ impl<T, const LANES: usize> Copy for Simd<T, LANES>
 diff --git a/crates/core_simd/src/math.rs b/crates/core_simd/src/math.rs
 index 7290a28..e394730 100644
 --- a/crates/core_simd/src/math.rs
 +++ b/crates/core_simd/src/math.rs
 @@ -2,6 +2,7 @@ macro_rules! impl_uint_arith {
-     ($(($name:ident, $n:ident)),+) => {
-         $( impl<const LANES: usize> $name<LANES> where Self: crate::LanesAtMost32 {
+     ($($ty:ty),+) => {
+         $( impl<const LANES: usize> Simd<$ty, LANES> where LaneCount<LANES>: SupportedLaneCount {
  
 +            /*
              /// Lanewise saturating add.
@@ -66,8 +52,8 @@ index 7290a28..e394730 100644
      }
  }
 @@ -46,6 +48,7 @@ macro_rules! impl_int_arith {
-     ($(($name:ident, $n:ident)),+) => {
-         $( impl<const LANES: usize> $name<LANES> where Self: crate::LanesAtMost32 {
+     ($($ty:ty),+) => {
+         $( impl<const LANES: usize> Simd<$ty, LANES> where LaneCount<LANES>: SupportedLaneCount {
  
 +            /*
              /// Lanewise saturating add.
@@ -87,7 +73,7 @@ index 61d8e44..2bccae2 100644
 +++ b/crates/core_simd/tests/masks.rs
 @@ -67,18 +67,6 @@ macro_rules! test_mask_api {
                  assert_eq!(int.to_array(), [-1, 0, 0, -1, 0, 0, -1, 0]);
-                 assert_eq!(core_simd::$name::<8>::from_int(int), mask);
+                 assert_eq!(core_simd::Mask::<$type, 8>::from_int(int), mask);
              }
 -
 -            #[test]
@@ -96,10 +82,10 @@ index 61d8e44..2bccae2 100644
 -                    true, false, false, true, false, false, true, false,
 -                    true, true, false, false, false, false, false, true,
 -                ];
--                let mask = core_simd::$name::<16>::from_array(values);
+-                let mask = core_simd::Mask::<$type, 16>::from_array(values);
 -                let bitmask = mask.to_bitmask();
 -                assert_eq!(bitmask, [0b01001001, 0b10000011]);
--                assert_eq!(core_simd::$name::<16>::from_bitmask(bitmask), mask);
+-                assert_eq!(core_simd::Mask::<$type, 16>::from_bitmask(bitmask), mask);
 -            }
          }
      }
@@ -122,7 +108,7 @@ index cb39e73..fc0ebe1 100644
                  }
 +                */
  
-                 fn sqrt<const LANES: usize>() {
+                 fn recip<const LANES: usize>() {
                      test_helpers::test_unary_elementwise(
 @@ -581,6 +585,7 @@ macro_rules! impl_float_tests {
                      });
@@ -138,8 +124,8 @@ index cb39e73..fc0ebe1 100644
                  }
 +                */
              }
-         }
-     }
+ 
+             #[cfg(feature = "std")]
 diff --git a/crates/core_simd/tests/round.rs b/crates/core_simd/tests/round.rs
 index 37044a7..4cdc6b7 100644
 --- a/crates/core_simd/tests/round.rs
diff --git a/scripts/tests.sh b/scripts/tests.sh
index 0eef710239b..28a7980d661 100755
--- a/scripts/tests.sh
+++ b/scripts/tests.sh
@@ -137,8 +137,8 @@ function extended_sysroot_tests() {
     fi
     popd
 
-    pushd stdsimd
-    echo "[TEST] rust-lang/stdsimd"
+    pushd portable-simd
+    echo "[TEST] rust-lang/portable-simd"
     ../build/cargo clean
     ../build/cargo build --all-targets --target $TARGET_TRIPLE
     if [[ "$HOST_TRIPLE" = "$TARGET_TRIPLE" ]]; then