diff --git a/NDTensors/Project.toml b/NDTensors/Project.toml
index 77f81d1deb..571a0b8672 100644
--- a/NDTensors/Project.toml
+++ b/NDTensors/Project.toml
@@ -61,6 +61,7 @@ HalfIntegers = "1"
 InlineStrings = "1"
 LinearAlgebra = "1.6"
 MappedArrays = "0.4"
+Metal = "1"
 PackageExtensionCompat = "1"
 Random = "1.6"
 SimpleTraits = "0.9.4"