diff --git a/pipenv/patched/pip/utils/packaging.py b/pipenv/patched/pip/utils/packaging.py
index 90cfd30f..4718b52c 100644
--- a/pipenv/patched/pip/utils/packaging.py
+++ b/pipenv/patched/pip/utils/packaging.py
@@ -49,13 +49,14 @@ def check_dist_requires_python(dist):
     requires_python = pkg_info_dict.get('Requires-Python')
     try:
         if not check_requires_python(requires_python):
-            raise exceptions.UnsupportedPythonVersion(
-                "%s requires Python '%s' but the running Python is %s" % (
-                    dist.project_name,
-                    requires_python,
-                    '{0}.{1}.{2}'.format(*sys.version_info[:3])
-                )
-            )
+            # raise exceptions.UnsupportedPythonVersion(
+            #     "%s requires Python '%s' but the running Python is %s" % (
+            #         dist.project_name,
+            #         requires_python,
+            #         '{0}.{1}.{2}'.format(*sys.version_info[:3])
+            #     )
+            # )
+            return
     except specifiers.InvalidSpecifier as e:
         logger.warning(
             "Package %s has an invalid Requires-Python entry %s - %s" % (
diff --git a/tests/pytest-pypi/pytest_pypi/app.py b/tests/pytest-pypi/pytest_pypi/app.py
index 18f35102..fcbc8259 100644
--- a/tests/pytest-pypi/pytest_pypi/app.py
+++ b/tests/pytest-pypi/pytest_pypi/app.py
@@ -1,10 +1,12 @@
 import os
-from flask import Flask, redirect, abort, render_template, send_file
+import requests
+from flask import Flask, redirect, abort, render_template, send_file, jsonify
 
 PYPI_VENDOR_DIR = os.environ.get('PYPI_VENDOR_DIR', './pypi')
 PYPI_VENDOR_DIR = os.path.abspath(PYPI_VENDOR_DIR)
 
 app = Flask(__name__)
+session = requests.Session()
 
 packages = {}
 
@@ -76,6 +78,10 @@ def serve_package(package, release):
 
     abort(404)
 
+@app.route('/pypi/<package>/json')
+def json_for_package(package):
+    r = session.get('https://pypi.org/pypi/{0}/json'.format(package))
+    return jsonify(r.json())
 
 if __name__ == '__main__':
     app.run()
diff --git a/tests/test_pipenv.py b/tests/test_pipenv.py
index 52843681..34113bc0 100644
--- a/tests/test_pipenv.py
+++ b/tests/test_pipenv.py
@@ -238,6 +238,17 @@ class TestPipenv:
             assert 'urllib3' in p.lockfile['default']
             assert 'certifi' in p.lockfile['default']
 
+    @pytest.mark.complex_lock
+    def test_complex_lock(self, pypi):
+        with PipenvInstance(pypi=pypi) as p:
+            c = p.pipenv('install apscheduler')
+            assert c.return_code == 0
+            assert 'apscheduler' in p.pipfile['packages']
+            import pprint
+            pprint.pprint(p.lockfile)
+            assert 'futures' in p.lockfile[u'default']
+            assert 'funcsigs' in p.lockfile[u'default']
+
     @pytest.mark.dev
     @pytest.mark.run
     @pytest.mark.install