diff --git a/pytrustnfe/nfe/assinatura.py b/pytrustnfe/nfe/assinatura.py
index 9e9af08..b7558fc 100644
--- a/pytrustnfe/nfe/assinatura.py
+++ b/pytrustnfe/nfe/assinatura.py
@@ -27,7 +27,7 @@ class Assinatura(object):
             c14n_algorithm='http://www.w3.org/TR/2001/REC-xml-c14n-20010315')
 
         signed_root = signer.sign(
-            xml_element, key=key, cert=cert, reference_only=True,
+            xml_element, key=key, cert=cert,
             reference_uri=('#%s' % reference))
         if len(signed_root) > 3:
             signed_root[2].append(signed_root[3])
diff --git a/requirements.txt b/requirements.txt
index d1fd3f4..059038b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ coveralls
 http://xmlsoft.org/sources/python/libxml2-python-2.6.21.tar.gz
 https://github.com/odoo-brazil/pyxmlsec/archive/master.zip
 Jinja2
-https://github.com/Trust-Code/signxml/archive/sign-by-reference.zip
+signxml
 pypandoc
 suds
 suds_requests