diff --git a/onnxmltools/__init__.py b/onnxmltools/__init__.py
index 07207a26..bb8e46bc 100644
--- a/onnxmltools/__init__.py
+++ b/onnxmltools/__init__.py
@@ -9,7 +9,7 @@
 This framework converts any machine learned model into onnx format
 which is a common language to describe any machine learned model.
 """
-__version__ = "1.3.2"
+__version__ = "1.4.0"
 __author__ = "Microsoft"
 __producer__ = "OnnxMLTools"
 __producer_version__ = __version__