diff --git a/src/corva/handlers.py b/src/corva/handlers.py
index 3e748af4..862eeb86 100644
--- a/src/corva/handlers.py
+++ b/src/corva/handlers.py
@@ -197,7 +197,7 @@ def wrapper(
             return
 
         app_event = event.metadata.log_type.event.model_validate(
-            event.model_copy(update={"records": records}, deep=True).model_dump()
+            event.copy(update={"records": records}, deep=True).model_dump()
         )
         with LoggingContext(
             aws_request_id=aws_request_id,
diff --git a/src/corva/models/stream/raw.py b/src/corva/models/stream/raw.py
index a88ba09c..814c95f3 100644
--- a/src/corva/models/stream/raw.py
+++ b/src/corva/models/stream/raw.py
@@ -82,9 +82,9 @@ class RawMetadata(CorvaBaseEvent):
     RecordsTime = Sequence[RawTimeRecord]
     RecordsDepth = Sequence[RawDepthRecord]
 else:
-    RecordsBase = Annotated[List[RawBaseRecord], Field(min_length=1)]
-    RecordsTime = Annotated[List[RawTimeRecord], Field(min_length=0)]
-    RecordsDepth = Annotated[List[RawDepthRecord], Field(min_length=1)]
+    RecordsBase = Annotated[List[RawBaseRecord], Field(min_items=1)]
+    RecordsTime = Annotated[List[RawTimeRecord], Field(min_items=0)]
+    RecordsDepth = Annotated[List[RawDepthRecord], Field(min_items=1)]
 
 
 class RawStreamEvent(CorvaBaseEvent, RawBaseEvent):
diff --git a/src/corva/models/stream/stream.py b/src/corva/models/stream/stream.py
index 3b8aeb4f..78d368b0 100644
--- a/src/corva/models/stream/stream.py
+++ b/src/corva/models/stream/stream.py
@@ -39,8 +39,8 @@ class StreamDepthRecord(CorvaBaseEvent):
     RecordsTime = Sequence[StreamTimeRecord]
     RecordsDepth = Sequence[StreamDepthRecord]
 else:
-    RecordsTime = Annotated[List[StreamTimeRecord], Field(min_length=1)]
-    RecordsDepth = Annotated[List[StreamDepthRecord], Field(min_length=1)]
+    RecordsTime = Annotated[List[StreamTimeRecord], Field(min_items=1)]
+    RecordsDepth = Annotated[List[StreamDepthRecord], Field(min_items=1)]
 
 
 class StreamEvent(CorvaBaseEvent):
diff --git a/tests/unit/test_scheduled_app.py b/tests/unit/test_scheduled_app.py
index ea4b10b0..d6af52b7 100644
--- a/tests/unit/test_scheduled_app.py
+++ b/tests/unit/test_scheduled_app.py
@@ -254,7 +254,7 @@ def test_set_schedule_start(
     def app(e, api, state):
         return e
 
-    event = event.model_copy(update={'schedule_start': value})
+    event = event.copy(update={'schedule_start': value})
     app_event = (
         type(event)
         .model_validate(