diff --git a/specification/mediaservices/resource-manager/Microsoft.Media/preview/2019-09-01-preview/Common.json b/specification/mediaservices/resource-manager/Microsoft.Media/preview/2019-09-01-preview/Common.json
index 8ffd3bd1f71a..a940d0c41995 100644
--- a/specification/mediaservices/resource-manager/Microsoft.Media/preview/2019-09-01-preview/Common.json
+++ b/specification/mediaservices/resource-manager/Microsoft.Media/preview/2019-09-01-preview/Common.json
@@ -2,7 +2,7 @@
   "swagger": "2.0",
   "info": {
     "title": "Azure Media Services",
-    "version": "2018-07-01"
+    "version": "2019-09-01-preview"
   },
   "securityDefinitions": {
     "azure_auth": {
diff --git a/specification/mediaservices/resource-manager/Microsoft.Media/preview/2020-02-01-preview/Common.json b/specification/mediaservices/resource-manager/Microsoft.Media/preview/2020-02-01-preview/Common.json
index 8ffd3bd1f71a..1745b2883a4b 100644
--- a/specification/mediaservices/resource-manager/Microsoft.Media/preview/2020-02-01-preview/Common.json
+++ b/specification/mediaservices/resource-manager/Microsoft.Media/preview/2020-02-01-preview/Common.json
@@ -2,7 +2,7 @@
   "swagger": "2.0",
   "info": {
     "title": "Azure Media Services",
-    "version": "2018-07-01"
+    "version": "2020-02-01-preview"
   },
   "securityDefinitions": {
     "azure_auth": {