diff --git a/timely_beliefs/beliefs/classes.py b/timely_beliefs/beliefs/classes.py
index 1c028220..34d9a6c5 100644
--- a/timely_beliefs/beliefs/classes.py
+++ b/timely_beliefs/beliefs/classes.py
@@ -2211,15 +2211,17 @@ def set_columns_and_indices_for_empty_frame(df, columns, indices, default_types)
 def assign_sensor_and_event_resolution(df, sensor, event_resolution):
     """Set the Sensor metadata (including timing properties of the sensor)."""
 
-    if not isinstance(sensor, Sensor):
-        import warnings
-
-        warnings.warn(
-            "'sensor' field needs to be of type 'Sensor'. This constraint will be enforced in an upcoming version.",
-            FutureWarning,
-        )
-
-        # TODO: raise ValueError(...)
+    # https://github.com/SeitaBV/timely-beliefs/issues/145
+    # if not isinstance(sensor, Sensor):
+    #     import warnings
+    #
+    #     warnings.warn(
+    #         "'sensor' field needs to be of type 'Sensor'. This constraint will be enforced in an upcoming version.",
+    #         FutureWarning,
+    #         # stacklevel=6,
+    #     )
+    #
+    #     # TODO: raise ValueError(...)
 
     df.sensor = sensor
     df.event_resolution = (