diff --git a/requirements.txt b/requirements.txt
index e4357ac..da47d0f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,6 @@
 Jinja2==2.7.3
-MarkupSafe==0.23
+-e git+gitolite:/Opytex.git@38351983f9e4961dd9c4efe4dcdcb9b16f149367#egg=Opytex-dev
 path.py==5.2
--e git+gitolite:pyMath@0fa194848dc07dcc9834ace88352a5485aa7f166#egg=pyMath-dev
+-e git+gitolite:/pyMath.git@94e1a7e1668c34483fbcfef376bca2f6336b4283#egg=pyMath-origin/dev
+pyparsing==2.0.3
+sympy==0.7.6