diff --git a/specification/compute/resource-manager/readme.md b/specification/compute/resource-manager/readme.md
index 896ed60e42bb..5dce0a650bf4 100644
--- a/specification/compute/resource-manager/readme.md
+++ b/specification/compute/resource-manager/readme.md
@@ -223,7 +223,7 @@ input-file:
 - Microsoft.Compute/stable/2020-12-01/compute.json
 - Microsoft.Compute/stable/2020-12-01/runCommands.json
 - Microsoft.Compute/stable/2019-04-01/skus.json
-- Microsoft.Compute/stable/2020-09-30/disk.json
+- Microsoft.Compute/stable/2020-12-01/disk.json
 - Microsoft.Compute/stable/2019-12-01/gallery.json
 - Microsoft.Compute/stable/2021-03-01/cloudService.json
 ```