diff --git a/services/msi/mgmt/2018-11-30/msi/CHANGELOG.md b/services/msi/mgmt/2018-11-30/msi/CHANGELOG.md
index 52911e4cc5e4..a1ecf841edb0 100644
--- a/services/msi/mgmt/2018-11-30/msi/CHANGELOG.md
+++ b/services/msi/mgmt/2018-11-30/msi/CHANGELOG.md
@@ -1,2 +1,2 @@
-# Change History
+# Unreleased
 
diff --git a/services/msi/mgmt/2018-11-30/msi/_meta.json b/services/msi/mgmt/2018-11-30/msi/_meta.json
index b2bed06fc2ed..34ebd44416f5 100644
--- a/services/msi/mgmt/2018-11-30/msi/_meta.json
+++ b/services/msi/mgmt/2018-11-30/msi/_meta.json
@@ -1,5 +1,5 @@
 {
-  "commit": "3c764635e7d442b3e74caf593029fcd440b3ef82",
+  "commit": "44c855cc0a7e63e726e5bfbabbb911000d7c3fd7",
   "readme": "/_/azure-rest-api-specs/specification/msi/resource-manager/readme.md",
   "tag": "package-2018-11-30",
   "use": "@microsoft.azure/autorest.go@2.1.187",
diff --git a/services/preview/msi/mgmt/2015-08-31-preview/msi/CHANGELOG.md b/services/preview/msi/mgmt/2015-08-31-preview/msi/CHANGELOG.md
index 52911e4cc5e4..a1ecf841edb0 100644
--- a/services/preview/msi/mgmt/2015-08-31-preview/msi/CHANGELOG.md
+++ b/services/preview/msi/mgmt/2015-08-31-preview/msi/CHANGELOG.md
@@ -1,2 +1,2 @@
-# Change History
+# Unreleased
 
diff --git a/services/preview/msi/mgmt/2015-08-31-preview/msi/_meta.json b/services/preview/msi/mgmt/2015-08-31-preview/msi/_meta.json
index c094298d8299..aa3eb9a80fbc 100644
--- a/services/preview/msi/mgmt/2015-08-31-preview/msi/_meta.json
+++ b/services/preview/msi/mgmt/2015-08-31-preview/msi/_meta.json
@@ -1,5 +1,5 @@
 {
-  "commit": "3c764635e7d442b3e74caf593029fcd440b3ef82",
+  "commit": "44c855cc0a7e63e726e5bfbabbb911000d7c3fd7",
   "readme": "/_/azure-rest-api-specs/specification/msi/resource-manager/readme.md",
   "tag": "package-2015-08-31-preview",
   "use": "@microsoft.azure/autorest.go@2.1.187",
diff --git a/services/preview/msi/mgmt/2021-09-30-preview/msi/CHANGELOG.md b/services/preview/msi/mgmt/2021-09-30-preview/msi/CHANGELOG.md
index 52911e4cc5e4..a1ecf841edb0 100644
--- a/services/preview/msi/mgmt/2021-09-30-preview/msi/CHANGELOG.md
+++ b/services/preview/msi/mgmt/2021-09-30-preview/msi/CHANGELOG.md
@@ -1,2 +1,2 @@
-# Change History
+# Unreleased
 
diff --git a/services/preview/msi/mgmt/2021-09-30-preview/msi/_meta.json b/services/preview/msi/mgmt/2021-09-30-preview/msi/_meta.json
index f83150fa9769..ae3aba1d5bc3 100644
--- a/services/preview/msi/mgmt/2021-09-30-preview/msi/_meta.json
+++ b/services/preview/msi/mgmt/2021-09-30-preview/msi/_meta.json
@@ -1,11 +1,11 @@
 {
-  "commit": "162460648e39b3cd20ef3d302008add138e90223",
+  "commit": "44c855cc0a7e63e726e5bfbabbb911000d7c3fd7",
   "readme": "/_/azure-rest-api-specs/specification/msi/resource-manager/readme.md",
-  "tag": "package-preview-2021-09",
+  "tag": "package-preview-2021-09-30",
   "use": "@microsoft.azure/autorest.go@2.1.187",
   "repository_url": "https://github.com/Azure/azure-rest-api-specs.git",
-  "autorest_command": "autorest --use=@microsoft.azure/autorest.go@2.1.187 --tag=package-preview-2021-09 --go-sdk-folder=/_/azure-sdk-for-go --go --verbose --use-onever --version=2.0.4421 --go.license-header=MICROSOFT_MIT_NO_VERSION --enum-prefix /_/azure-rest-api-specs/specification/msi/resource-manager/readme.md",
+  "autorest_command": "autorest --use=@microsoft.azure/autorest.go@2.1.187 --tag=package-preview-2021-09-30 --go-sdk-folder=/_/azure-sdk-for-go --go --verbose --use-onever --version=2.0.4421 --go.license-header=MICROSOFT_MIT_NO_VERSION /_/azure-rest-api-specs/specification/msi/resource-manager/readme.md",
   "additional_properties": {
-    "additional_options": "--go --verbose --use-onever --version=2.0.4421 --go.license-header=MICROSOFT_MIT_NO_VERSION --enum-prefix"
+    "additional_options": "--go --verbose --use-onever --version=2.0.4421 --go.license-header=MICROSOFT_MIT_NO_VERSION"
   }
 }
\ No newline at end of file