diff --git a/setup.py b/setup.py
index 17d4666..9e0dd46 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,13 @@ setup(name='Opytex',
       author='Benjamin Bertrand',
       author_email='lafrite@poneyworld.net',
       packages=['opytex'],
-      install_requires=['jinja2', 'pyMath', 'path.py'],
+      install_requires=['jinja2==2.7.3',
+          'path.py==5.2',
+          'pyMath=1.1',
+          ],
+      dependency_links=[
+        "git+http://http://git.poneyworld.net/pyMath/#egg=pyMath-1.1"
+      ]
       entry_points = {
         "console_scripts": ['opytex= opytex.opytex:main']
         },