diff --git a/pytrustnfe/client.py b/pytrustnfe/client.py
index bf76c7b..ff78715 100644
--- a/pytrustnfe/client.py
+++ b/pytrustnfe/client.py
@@ -44,7 +44,7 @@ class HttpClient(object):
 
     def _headers(self, action):
         return {
-            u'Content-type': u'application/soap+xml; charset=utf-8; action="http://www.portalfiscal.inf.br/nfe/wsdl/%s"' % action,
+            u'Content-type': u'text/xml; charset=utf-8; action="http://www.portalfiscal.inf.br/nfe/wsdl/%s"' % action,
             u'Accept': u'application/soap+xml; charset=utf-8',
         }
 
diff --git a/setup.py b/setup.py
index f74be77..d536688 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 # coding=utf-8
 from setuptools import setup, find_packages
 
-VERSION = "0.1.39"
+VERSION = "0.1.40"
 
 setup(
     name="PyTrustNFe",