diff --git a/aidge_onnx/onnx_import.py b/aidge_onnx/onnx_import.py
index 59b4f42ea618d8b8c4d4d21277fe64f859f6d30b..bb97523dea5beb9377ae358e9e4ce9d16d7bc5fc 100644
--- a/aidge_onnx/onnx_import.py
+++ b/aidge_onnx/onnx_import.py
@@ -92,8 +92,8 @@ def _load_onnx2graphview(model:onnx.ModelProto, verbose:bool = False):
     :rtype: :py:class:`aidge_core.GraphView`
     """
     opset: int = None
-    if hasattr(model, 'ir_version'):
-        opset =  model.ir_version
+    if hasattr(model, 'opset_import'):
+        domains =  {domain.domain : domain.version for domain in model.opset_import}
     else:
         raise RuntimeError("Cannot retieve opset version from ONNX model.")
     Log.info(f"ONNX metadata:" \
@@ -122,6 +122,10 @@ def _load_onnx2graphview(model:onnx.ModelProto, verbose:bool = False):
     for onnx_node in model.graph.node:
         node_name = onnx_node.output[0] # Do not use onnx_node.name as it is not a mandatory value
         node_inputs[node_name] = [None]*len(onnx_node.input)
+        # There can be multiple opsets in a given model, each ones attached to a given domain
+        # Each nodes are attached to a given opset via a domain name.
+        # more on how opset work here : http://onnx.ai/sklearn-onnx/auto_tutorial/plot_cbegin_opset.html
+        node_opset = domains[onnx_node.domain]
 
         # Adding producers to the list of inputs
         for input_idx, input_node in enumerate(onnx_node.input):
@@ -129,7 +133,7 @@ def _load_onnx2graphview(model:onnx.ModelProto, verbose:bool = False):
                 node_inputs[node_name][input_idx] = (model_producers[input_node], 0)
 
         try:
-            model_nodes[node_name] = ONNX_NODE_CONVERTER_[onnx_node.op_type.lower()](onnx_node, node_inputs[node_name], opset)
+            model_nodes[node_name] = ONNX_NODE_CONVERTER_[onnx_node.op_type.lower()](onnx_node, node_inputs[node_name], node_opset)
         except Exception as e:
             Log.warn(f"An error occured when trying to load node {node_name} of type {onnx_node.op_type.lower()}."
                      f"Loading node using a generic operator."