diff --git a/specs/ingestion/common/schemas/authentication.yml b/specs/ingestion/common/schemas/authentication.yml
index 1bc93105076..a7aa4e6708f 100644
--- a/specs/ingestion/common/schemas/authentication.yml
+++ b/specs/ingestion/common/schemas/authentication.yml
@@ -25,6 +25,7 @@ Authentication:
     - name
     - input
     - createdAt
+    - updatedAt
 
 AuthenticationCreate:
   type: object
diff --git a/specs/ingestion/common/schemas/destination.yml b/specs/ingestion/common/schemas/destination.yml
index a149b75577f..9520bd7c5e6 100644
--- a/specs/ingestion/common/schemas/destination.yml
+++ b/specs/ingestion/common/schemas/destination.yml
@@ -27,6 +27,7 @@ Destination:
     - name
     - input
     - createdAt
+    - updatedAt
 
 DestinationCreate:
   type: object
diff --git a/specs/ingestion/common/schemas/source.yml b/specs/ingestion/common/schemas/source.yml
index 91bd3f72036..92c142bc85a 100644
--- a/specs/ingestion/common/schemas/source.yml
+++ b/specs/ingestion/common/schemas/source.yml
@@ -23,6 +23,7 @@ Source:
     - type
     - name
     - createdAt
+    - updatedAt
 
 SourceCreate:
   type: object
diff --git a/specs/ingestion/common/schemas/task.yml b/specs/ingestion/common/schemas/task.yml
index 6d47bb7df01..4c0817646dc 100644
--- a/specs/ingestion/common/schemas/task.yml
+++ b/specs/ingestion/common/schemas/task.yml
@@ -44,6 +44,7 @@ Task:
     - destinationID
     - enabled
     - createdAt
+    - updatedAt
 
 TaskV1:
   type: object
@@ -86,6 +87,7 @@ TaskV1:
     - trigger
     - enabled
     - createdAt
+    - updatedAt
 
 Trigger:
   description: Trigger that runs the task.
diff --git a/specs/ingestion/common/schemas/transformation.yml b/specs/ingestion/common/schemas/transformation.yml
index 9e58ea58c19..c36dca2918a 100644
--- a/specs/ingestion/common/schemas/transformation.yml
+++ b/specs/ingestion/common/schemas/transformation.yml
@@ -23,6 +23,7 @@ Transformation:
     - code
     - name
     - createdAt
+    - updatedAt
 
 Code:
   type: string
@@ -119,9 +120,9 @@ TransformationTryResponse:
   properties:
     payloads:
       type: array
-      description: The array of records returned by the transformation service.
+      description: The array of stringified records returned by the transformation service.
       items:
-        type: object
+        type: string
     error:
       title: transformationError
       type: object