diff --git a/.travis.yml b/.travis.yml
index cb1beb7e..b004d9ea 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,6 +14,11 @@ addons:
     packages:
       - libxml2-dev
       - libxmlsec1-dev
+      - python-dev
+      - libffi-dev
+      - libxslt1-dev
+      - libssl-dev
+      - libxmlsec1-dev
 
 env:
   - LINT="1" FLAKE="0" TEST="0"
diff --git a/requirements.txt b/requirements.txt
index 54fbbcec..816c45fd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,5 @@
 -e git://github.com/odoo-brazil/pyxmlsec.git@master#egg=pyxmlsec
 -e git://github.com/odoo-brazil/geraldo.git@master#egg=geraldo
-
+lxml
+http://xmlsoft.org/sources/python/libxml2-python-2.6.21.tar.gz
+pytz