Index: python-jose-3.1.0/setup.py
===================================================================
--- python-jose-3.1.0.orig/setup.py
+++ python-jose-3.1.0/setup.py
@@ -35,11 +35,11 @@ def _cryptography_version():
 pyasn1 = ['pyasn1']
 extras_require = {
     'cryptography': [_cryptography_version()],
-    'pycrypto': ['pycrypto >=2.6.0, <2.7.0'] + pyasn1,
-    'pycryptodome': ['pycryptodome >=3.3.1, <4.0.0'] + pyasn1,
+    'pycrypto': ['pycrypto >=2.6.0'] + pyasn1,
+    'pycryptodome': ['pycryptodome >=3.3.1'] + pyasn1,
 }
-legacy_backend_requires = ['ecdsa <1.0', 'rsa'] + pyasn1
-install_requires = ['six <2.0']
+legacy_backend_requires = ['ecdsa', 'rsa'] + pyasn1
+install_requires = ['six']
 
 # TODO: work this into the extras selection instead.
 install_requires += legacy_backend_requires