diff --git a/setup.py b/setup.py
index 5e771f4a1a88e191dd0e523cd73e5c833567c859..5449192a5ae64da5dc4c3a0844f96bc0f9c56682 100644
--- a/setup.py
+++ b/setup.py
@@ -31,6 +31,7 @@ setup(
         "pybedtools",
         "scipy",
         "seaborn"],
+    # specific versions and index would rather belong to requirements.txt
     #dependency_links=["git+https://gitlab.pasteur.fr/bli/libworkflows@744dd79b579577cb6e131653260d7990946be3ad#egg=libworkflows-0.1"],
     #dependency_links=["git+https://gitlab.pasteur.fr/bli/libworkflows#egg=libworkflows-0.1"]
     #dependency_links=["git+https://gitlab+deploy-token-31:isEzpsgbNf2sJMdUDy2g@gitlab.pasteur.fr/bli/libworkflows.git@744dd79b579577cb6e131653260d7990946be3ad#egg=libworkflows-0.1"]