diff --git a/specification/synapse/resource-manager/Microsoft.Synapse/preview/2019-06-01-preview/bigDataPool.json b/specification/synapse/resource-manager/Microsoft.Synapse/preview/2019-06-01-preview/bigDataPool.json
index 93550069d207..12edb94667d9 100644
--- a/specification/synapse/resource-manager/Microsoft.Synapse/preview/2019-06-01-preview/bigDataPool.json
+++ b/specification/synapse/resource-manager/Microsoft.Synapse/preview/2019-06-01-preview/bigDataPool.json
@@ -565,8 +565,7 @@
         "uploadedTimestamp": {
           "type": "string",
           "format": "date-time",
-          "description": "The last update time of the library.",
-          "readOnly": true
+          "description": "The last update time of the library."
         },
         "type": {
           "type": "string",
diff --git a/specification/synapse/resource-manager/Microsoft.Synapse/preview/2021-06-01-preview/bigDataPool.json b/specification/synapse/resource-manager/Microsoft.Synapse/preview/2021-06-01-preview/bigDataPool.json
index 75ac4fda72f3..b0dca8d90037 100644
--- a/specification/synapse/resource-manager/Microsoft.Synapse/preview/2021-06-01-preview/bigDataPool.json
+++ b/specification/synapse/resource-manager/Microsoft.Synapse/preview/2021-06-01-preview/bigDataPool.json
@@ -567,8 +567,7 @@
         "uploadedTimestamp": {
           "type": "string",
           "format": "date-time",
-          "description": "The last update time of the library.",
-          "readOnly": true
+          "description": "The last update time of the library."
         },
         "type": {
           "type": "string",