diff --git a/oidc_provider/views.py b/oidc_provider/views.py
index a70d83b..db0aa98 100644
--- a/oidc_provider/views.py
+++ b/oidc_provider/views.py
@@ -189,8 +189,8 @@ class JwksView(View):
             'alg': 'RS256',
             'use': 'sig',
             'kid': md5(key).hexdigest(),
-            'n': long_to_base64(public_key.n).decode('utf-8'),
-            'e': long_to_base64(public_key.e).decode('utf-8'),
+            'n': long_to_base64(public_key.n),
+            'e': long_to_base64(public_key.e),
         })
 
         return JsonResponse(dic)
diff --git a/setup.py b/setup.py
index 7b90016..321ae98 100644
--- a/setup.py
+++ b/setup.py
@@ -37,11 +37,11 @@ setup(
         'Topic :: Internet :: WWW/HTTP :: Dynamic Content',
     ],
     tests_require=[
-        'pyjwkest>=1.0.3,<1.1',
+        'pyjwkest>=1.0.6,<1.1',
         'mock==1.3.0',
     ],
 
     install_requires=[
-        'pyjwkest>=1.0.3,<1.1',
+        'pyjwkest>=1.0.6,<1.1',
     ],
 )