diff --git a/crypten/nn/onnx_converter.py b/crypten/nn/onnx_converter.py
index a7f121d1..4fa408eb 100644
--- a/crypten/nn/onnx_converter.py
+++ b/crypten/nn/onnx_converter.py
@@ -36,8 +36,8 @@
     SYM_REGISTRY = False
 
 
-_OPSET_VERSION = 17
-
+#_OPSET_VERSION = 17
+_OPSET_VERSION = 11
 
 def from_onnx(onnx_string_or_file):
     """