diff --git a/specification/storage/data-plane/Microsoft.BlobStorage/preview/2019-12-12/blob.json b/specification/storage/data-plane/Microsoft.BlobStorage/preview/2019-12-12/blob.json
index a09dae634157..5ff60da13b53 100644
--- a/specification/storage/data-plane/Microsoft.BlobStorage/preview/2019-12-12/blob.json
+++ b/specification/storage/data-plane/Microsoft.BlobStorage/preview/2019-12-12/blob.json
@@ -5953,9 +5953,6 @@
           {
             "$ref": "#/parameters/SourceIfNoneMatch"
           },
-          {
-            "$ref": "#/parameters/SourceIfTags"
-          },
           {
             "$ref": "#/parameters/IfModifiedSince"
           },
diff --git a/specification/storage/data-plane/Microsoft.BlobStorage/preview/2020-02-10/blob.json b/specification/storage/data-plane/Microsoft.BlobStorage/preview/2020-02-10/blob.json
index 0033c31e7ccc..68670445c4ed 100644
--- a/specification/storage/data-plane/Microsoft.BlobStorage/preview/2020-02-10/blob.json
+++ b/specification/storage/data-plane/Microsoft.BlobStorage/preview/2020-02-10/blob.json
@@ -5953,9 +5953,6 @@
           {
             "$ref": "#/parameters/SourceIfNoneMatch"
           },
-          {
-            "$ref": "#/parameters/SourceIfTags"
-          },
           {
             "$ref": "#/parameters/IfModifiedSince"
           },