diff --git a/fbchat/graphql.py b/fbchat/graphql.py
index 1335893..81f7411 100644
--- a/fbchat/graphql.py
+++ b/fbchat/graphql.py
@@ -26,12 +26,11 @@ class ConcatJSONDecoder(json.JSONDecoder):
 def graphql_color_to_enum(color):
     if color is None:
         return None
-    if len(color) == 0:
+    if not color:
         return ThreadColor.MESSENGER_BLUE
-    try:
-        return ThreadColor('#{}'.format(color[2:].lower()))
-    except ValueError:
-        raise FBchatException('Could not get ThreadColor from color: {}'.format(color))
+    color = color[2:]  # Strip the alpha value
+    color_value = '#{}'.format(color.lower())
+    return enum_extend_if_invalid(ThreadColor, color_value)
 
 def get_customization_info(thread):
     if thread is None or thread.get('customization_info') is None:
@@ -285,7 +284,10 @@ def graphql_to_message(message):
     rtn.unsent = False
     if message.get('unread') is not None:
         rtn.is_read = not message['unread']
-    rtn.reactions = {str(r['user']['id']):MessageReaction(r['reaction']) for r in message.get('message_reactions')}
+    rtn.reactions = {
+        str(r['user']['id']): enum_extend_if_invalid(MessageReaction, r['reaction'])
+        for r in message.get('message_reactions')
+    }
     if message.get('blob_attachments') is not None:
         rtn.attachments = [graphql_to_attachment(attachment) for attachment in message['blob_attachments']]
     if message.get('extensible_attachment') is not None:
diff --git a/fbchat/models.py b/fbchat/models.py
index ac38455..e6bc193 100644
--- a/fbchat/models.py
+++ b/fbchat/models.py
@@ -1,7 +1,7 @@
 # -*- coding: UTF-8 -*-
 
 from __future__ import unicode_literals
-import enum
+import aenum
 
 
 class FBchatException(Exception):
@@ -602,7 +602,7 @@ class Plan(object):
     def __unicode__(self):
         return '<Plan ({}): {} time={}, location={}, location_id={}>'.format(self.uid, repr(self.title), self.time, repr(self.location), repr(self.location_id))
 
-class Enum(enum.Enum):
+class Enum(aenum.Enum):
     """Used internally by fbchat to support enumerations"""
     def __repr__(self):
         # For documentation:
diff --git a/fbchat/utils.py b/fbchat/utils.py
index c39e652..2e1a39a 100644
--- a/fbchat/utils.py
+++ b/fbchat/utils.py
@@ -11,6 +11,7 @@ from os.path import basename
 import warnings
 import logging
 import requests
+import aenum
 from .models import *
 
 try:
@@ -300,6 +301,14 @@ def get_files_from_paths(filenames):
     for fn, fp, ft in files:
         fp.close()
 
+def enum_extend_if_invalid(enumeration, value):
+    try:
+        return enumeration(value)
+    except ValueError:
+        log.warning("Failed parsing {.__name__}({!r}). Extending enum.".format(enumeration, value))
+        aenum.extend_enum(enumeration, "UNKNOWN_{}".format(value).upper(), value)
+        return enumeration(value)
+
 def get_url_parameters(url, *args):
     params = parse_qs(urlparse(url).query)
     return [params[arg][0] for arg in args if params.get(arg)]
diff --git a/requirements.txt b/requirements.txt
index 9cb2a6c..40ce5a1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 requests
 beautifulsoup4
-enum34; python_version < '3.4'
+aenum
diff --git a/setup.cfg b/setup.cfg
index b554b7b..45cdd3b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -43,9 +43,6 @@ include_package_data = True
 packages = find:
 python_requires = >=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, <4.0
 install_requires =
+    aenum
     requests
     beautifulsoup4
-    # May not work in pip with bdist_wheel
-    # See https://wheel.readthedocs.io/en/latest/#defining-conditional-dependencies
-    # It is therefore defined in setup.py
-    # enum34; python_version < '3.4'
diff --git a/setup.py b/setup.py
index 1157ca5..3216505 100755
--- a/setup.py
+++ b/setup.py
@@ -5,4 +5,4 @@ from __future__ import unicode_literals
 
 from setuptools import setup
 
-setup(extras_require={':python_version < "3.4"': ['enum34']})
+setup()