diff --git a/C/Chmy/Versions.toml b/C/Chmy/Versions.toml
index bc3d9da2a7db117..6d92ef49f9a59c3 100644
--- a/C/Chmy/Versions.toml
+++ b/C/Chmy/Versions.toml
@@ -6,3 +6,6 @@ git-tree-sha1 = "4c9df5f49647dbcbcaacf47833dcb4dd3875a971"
 
 ["0.1.19"]
 git-tree-sha1 = "f7b6660bda5eaf3c2b2d826372cd34dca2967e8e"
+
+["0.1.20"]
+git-tree-sha1 = "0d007caeec9578bfc14035d45df2c0b8121bb6a8"
diff --git a/C/Chmy/WeakCompat.toml b/C/Chmy/WeakCompat.toml
index 86e93b1d2f53505..b8a05661128bdd0 100644
--- a/C/Chmy/WeakCompat.toml
+++ b/C/Chmy/WeakCompat.toml
@@ -6,3 +6,6 @@ AMDGPU = "0.8-0.9"
 
 ["0.1.18-0"]
 AMDGPU = ["0.8-0.9", "1"]
+
+["0.1.20-0"]
+Metal = "1"
diff --git a/C/Chmy/WeakDeps.toml b/C/Chmy/WeakDeps.toml
index f722ad6a3a5faca..a62c2c74a16faef 100644
--- a/C/Chmy/WeakDeps.toml
+++ b/C/Chmy/WeakDeps.toml
@@ -1,3 +1,6 @@
 [0]
 AMDGPU = "21141c5a-9bdb-4563-92ae-f87d6854732e"
 CUDA = "052768ef-5323-5732-b1bb-66c8b64840ba"
+
+["0.1.20-0"]
+Metal = "dde4c033-4e86-420c-a63e-0dd931031962"