Constrain scipy version.

Later will have to enable 1.4.2.

requirements.txt

@@ -8,5 +8,5 @@ pyBigWig
 # pybedtools @ git+https://github.com/blaiseli/pybedtools.git@fix_missing_headers --global-option="cythonize"
 pybedtools @ git+https://github.com/blaiseli/pybedtools.git@pep518
 # pybedtools
-scipy
+scipy<=1.3.3
 seaborn

setup.py

@@ -46,7 +46,7 @@ setup(
         "pyBigWig",
         "pybedtools @ git+https://github.com/blaiseli/pybedtools.git@pep518",
         # "pybedtools",
-        "scipy",
+        "scipy<=1.3.3",
         "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"],