diff --git a/openapi.json b/openapi.json
index 6b693ad..a8c91c5 100755
--- a/openapi.json
+++ b/openapi.json
@@ -9936,6 +9936,12 @@
           "metadata": {
             "$ref": "#/components/schemas/Metadata"
           },
+          "service_account_id": {
+            "description": "Identifier of the system-managed service account associated with this reader.\nPresent only for readers that are already paired.\nThis field is currently in beta and may change.",
+            "type": "string",
+            "format": "uuid",
+            "x-beta": true
+          },
           "created_at": {
             "description": "The timestamp of when the reader was created.",
             "type": "string",
diff --git a/openapi.yaml b/openapi.yaml
index 97d91c0..b06d8ee 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -6997,6 +6997,14 @@ components:
           $ref: '#/components/schemas/ReaderDevice'
         metadata:
           $ref: '#/components/schemas/Metadata'
+        service_account_id:
+          description: |-
+            Identifier of the system-managed service account associated with this reader.
+            Present only for readers that are already paired.
+            This field is currently in beta and may change.
+          type: string
+          format: uuid
+          x-beta: true
         created_at:
           description: The timestamp of when the reader was created.
           type: string