diff --git a/setup.py b/setup.py
index b178677..0c6ac98 100644
--- a/setup.py
+++ b/setup.py
@@ -52,7 +52,7 @@
         ),
     include_package_data = True,  # Will read MANIFEST.in
     install_requires = [
-        'OpenFisca-Core >=34, <36',
+        'OpenFisca-Core >=34, <39',
         'PyYAML >= 3.10',
         'scipy >= 0.12',
         ],