diff --git a/api/oss/src/core/applications/dtos.py b/api/oss/src/core/applications/dtos.py
index 1b186c8ce1..3b740fc72f 100644
--- a/api/oss/src/core/applications/dtos.py
+++ b/api/oss/src/core/applications/dtos.py
@@ -1,7 +1,7 @@
 from typing import Optional, List
 from uuid import UUID
 
-from pydantic import Field
+from pydantic import ConfigDict, Field
 
 from oss.src.core.shared.dtos import sync_alias, AliasConfig
 from oss.src.core.shared.dtos import (
@@ -212,6 +212,7 @@ class ApplicationVariantQuery(WorkflowVariantQuery):
 
 
 class ApplicationRevisionData(WorkflowRevisionData):
+    model_config = ConfigDict(extra="forbid")
     pass
 
 
diff --git a/api/oss/src/core/evaluators/dtos.py b/api/oss/src/core/evaluators/dtos.py
index e68f4c53ec..7df5a71831 100644
--- a/api/oss/src/core/evaluators/dtos.py
+++ b/api/oss/src/core/evaluators/dtos.py
@@ -1,7 +1,7 @@
 from typing import Optional, List
 from uuid import UUID
 
-from pydantic import Field
+from pydantic import ConfigDict, Field
 
 from oss.src.core.shared.dtos import sync_alias, AliasConfig
 from oss.src.core.shared.dtos import (
@@ -208,6 +208,7 @@ class EvaluatorVariantQuery(WorkflowVariantQuery):
 
 
 class EvaluatorRevisionData(WorkflowRevisionData):
+    model_config = ConfigDict(extra="forbid")
     pass
 
 
diff --git a/api/oss/src/core/queries/dtos.py b/api/oss/src/core/queries/dtos.py
index 3b17bfb9f7..301d6fec7b 100644
--- a/api/oss/src/core/queries/dtos.py
+++ b/api/oss/src/core/queries/dtos.py
@@ -1,7 +1,7 @@
 from typing import List, Optional
 from uuid import UUID
 
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, ConfigDict, Field
 
 
 from oss.src.core.tracing.dtos import Filtering, Formatting
@@ -139,6 +139,7 @@ class QueryVariantQuery(VariantQuery):
 
 
 class QueryRevisionData(BaseModel):
+    model_config = ConfigDict(extra="forbid")
     formatting: Optional[Formatting] = None
     filtering: Optional[Filtering] = None
     windowing: Optional[Windowing] = None
diff --git a/api/oss/src/core/testsets/dtos.py b/api/oss/src/core/testsets/dtos.py
index 3ab2ffb2f3..6828922dc9 100644
--- a/api/oss/src/core/testsets/dtos.py
+++ b/api/oss/src/core/testsets/dtos.py
@@ -1,7 +1,7 @@
 from typing import Optional, List, Tuple
 from uuid import UUID
 
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, ConfigDict, Field
 
 from oss.src.core.shared.dtos import (
     sync_alias,
@@ -154,6 +154,7 @@ class TestsetVariantQuery(VariantQuery):
 
 
 class TestsetRevisionData(BaseModel):
+    model_config = ConfigDict(extra="forbid")
     testcase_ids: Optional[List[UUID]] = None
     testcases: Optional[List[Testcase]] = None
 
diff --git a/sdks/python/agenta/sdk/models/testsets.py b/sdks/python/agenta/sdk/models/testsets.py
index c3e4eb1b64..7a9073c17b 100644
--- a/sdks/python/agenta/sdk/models/testsets.py
+++ b/sdks/python/agenta/sdk/models/testsets.py
@@ -1,7 +1,7 @@
 from typing import List, Optional, Dict, Any
 from uuid import UUID
 
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, ConfigDict, Field
 
 from agenta.sdk.models.shared import (
     Identifier,
@@ -53,6 +53,7 @@ class TestsetFlags(BaseModel):
 
 
 class TestsetRevisionData(BaseModel):
+    model_config = ConfigDict(extra="forbid")
     testcase_ids: Optional[List[UUID]] = None
     testcases: Optional[List[Testcase]] = None
 
diff --git a/sdks/python/agenta/sdk/models/workflows.py b/sdks/python/agenta/sdk/models/workflows.py
index 67dfc3ac21..6c019463b6 100644
--- a/sdks/python/agenta/sdk/models/workflows.py
+++ b/sdks/python/agenta/sdk/models/workflows.py
@@ -119,6 +119,7 @@ class WorkflowQueryFlags(BaseModel):
 
 
 class WorkflowRevisionData(BaseModel):
+    model_config = ConfigDict(extra="forbid")
     uri: Optional[str] = None
 
     url: Optional[str] = None
@@ -562,6 +563,7 @@ class EvaluatorVariantIdAlias(AliasConfig):
 
 
 class EvaluatorRevisionData(WorkflowRevisionData):
+    model_config = ConfigDict(extra="forbid")
     pass
 
 
@@ -712,6 +714,7 @@ class ApplicationVariantEdit(WorkflowVariantEdit):
 
 
 class ApplicationRevisionData(WorkflowRevisionData):
+    model_config = ConfigDict(extra="forbid")
     pass