diff --git a/pytrustnfe/utils.py b/pytrustnfe/utils.py
index 540fbb9..1c369d2 100644
--- a/pytrustnfe/utils.py
+++ b/pytrustnfe/utils.py
@@ -76,7 +76,7 @@ def _find_node(xml, node):
 
 def gerar_nfeproc(envio, recibo):
     NSMAP = {None: 'http://www.portalfiscal.inf.br/nfe'}
-    root = ET.Element("nfeProc", versao="3.10", nsmap=NSMAP)
+    root = ET.Element("nfeProc", versao="4.00", nsmap=NSMAP)
     parser = ET.XMLParser(encoding='utf-8')
     docEnvio = ET.fromstring(envio.encode('utf-8'), parser=parser)
     docRecibo = ET.fromstring(recibo.encode('utf-8'), parser=parser)
diff --git a/setup.py b/setup.py
index cd5ab66..3a582b5 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 from setuptools import setup, find_packages
 
 
-VERSION = "0.10.1"
+VERSION = "0.10.2"
 
 
 setup(