diff --git a/apns2/credentials.py b/apns2/credentials.py
index 3735024..a81ad36 100644
--- a/apns2/credentials.py
+++ b/apns2/credentials.py
@@ -44,14 +44,11 @@ class TokenCredentials(Credentials):
         self.__token_lifetime = token_lifetime
 
         # Dictionary of {topic: (issue time, ascii decoded token)}
-        self.__topicTokens = {}
+        self.__jwt_token = None
 
         # Use the default constructor because we don't have an SSL context
         super(TokenCredentials, self).__init__()
 
-    def get_tokens(self):
-        return [val[1] for val in self.__topicTokens]
-
     def get_authorization_header(self, topic):
         token = self._get_or_create_topic_token(topic)
         return 'bearer %s' % token
@@ -70,7 +67,7 @@ class TokenCredentials(Credentials):
 
     def _get_or_create_topic_token(self, topic):
         # dict of topic to issue date and JWT token
-        token_pair = self.__topicTokens.get(topic)
+        token_pair = self.__jwt_token
         if token_pair is None or self._is_expired_token(token_pair[0]):
             # Create a new token
             issued_at = time.time()
@@ -86,7 +83,9 @@ class TokenCredentials(Credentials):
                                    algorithm=self.__encryption_algorithm,
                                    headers=headers).decode('ascii')
 
-            self.__topicTokens[topic] = (issued_at, jwt_token)
+            # Cache JWT token for later use. One JWT token per connection.
+            # https://developer.apple.com/documentation/usernotifications/setting_up_a_remote_notification_server/establishing_a_token-based_connection_to_apns
+            self.__jwt_token = (issued_at, jwt_token)
             return jwt_token
         else:
             return token_pair[1]
diff --git a/test/test_credentials.py b/test/test_credentials.py
index e390da5..6091859 100644
--- a/test/test_credentials.py
+++ b/test/test_credentials.py
@@ -39,13 +39,6 @@ class TokenCredentialsTestCase(TestCase):
             self.expiring_header = self.expiring_creds.get_authorization_header(
                 self.topics[0])
 
-    def test_create_multiple_topics(self):
-        h1 = self.normal_creds.get_authorization_header(self.topics[0])
-        self.assertEqual(len(self.normal_creds.get_tokens()), 1)
-        h2 = self.normal_creds.get_authorization_header(self.topics[1])
-        self.assertNotEqual(h1, h2)
-        self.assertEqual(len(self.normal_creds.get_tokens()), 2)
-
     def test_token_expiration(self):
         # As long as the token lifetime hasn't elapsed, this should work. To
         # be really careful, we should check how much time has elapsed to