diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 839de025..0a4013b6 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,7 +9,8 @@ test:
   image: ubuntu:latest
   script:
     - apt update
-    - apt install -y python3 cython3 gpg
+    - apt install -y python3 python3-pip cython3 gpg
+    - pip3 install emoji
     - ./run_tests.py
 
 trigger_poezio:
diff --git a/setup.py b/setup.py
index 5b122388..9ba0b5df 100755
--- a/setup.py
+++ b/setup.py
@@ -30,6 +30,7 @@ CLASSIFIERS = [
     'Programming Language :: Python',
     'Programming Language :: Python :: 3.7',
     'Programming Language :: Python :: 3.8',
+    'Programming Language :: Python :: 3.9',
     'Topic :: Internet :: XMPP',
     'Topic :: Software Development :: Libraries :: Python Modules',
 ]
@@ -82,7 +83,7 @@ setup(
     platforms=['any'],
     packages=packages,
     ext_modules=ext_modules,
-    install_requires=['aiodns>=1.0', 'pyasn1', 'pyasn1_modules', 'aiohttp'],
+    install_requires=['aiodns>=1.0', 'pyasn1', 'pyasn1_modules', 'aiohttp', 'emoji'],
     classifiers=CLASSIFIERS,
     cmdclass={'test': TestCommand}
 )
diff --git a/slixmpp/plugins/__init__.py b/slixmpp/plugins/__init__.py
index c7736adc..c21cc343 100644
--- a/slixmpp/plugins/__init__.py
+++ b/slixmpp/plugins/__init__.py
@@ -86,6 +86,6 @@ __all__ = [
     'xep_0325',  # IoT Systems Control
     'xep_0332',  # HTTP Over XMPP Transport
     'xep_0377',  # Spam reporting
-    'protoxep_reactions',  # https://dino.im/xeps/reactions.html
+    'xep_0444',  # Message Reactions
     'protoxep_occupantid',  # https://dino.im/xeps/occupant-id.html
 ]
diff --git a/slixmpp/plugins/protoxep_reactions/stanza.py b/slixmpp/plugins/protoxep_reactions/stanza.py
deleted file mode 100644
index 45414a37..00000000
--- a/slixmpp/plugins/protoxep_reactions/stanza.py
+++ /dev/null
@@ -1,31 +0,0 @@
-"""
-    Slixmpp: The Slick XMPP Library
-    Copyright (C) 2019 Mathieu Pasquet
-    This file is part of Slixmpp.
-
-    See the file LICENSE for copying permission.
-"""
-
-from slixmpp.xmlstream import ElementBase, register_stanza_plugin
-
-
-class Reactions(ElementBase):
-    name = 'reactions'
-    plugin_attrib = 'reactions'
-    namespace = 'urn:xmpp:reactions:0'
-    interfaces = {'to'}
-
-
-class Reaction(ElementBase):
-    name = 'reaction'
-    namespace = 'urn:xmpp:reactions:0'
-    interfaces = {'value'}
-
-    def get_value(self) -> str:
-        return self.xml.text
-
-    def set_value(self, value: str):
-        self.xml.text = value
-
-
-register_stanza_plugin(Reactions, Reaction, iterable=True)
diff --git a/slixmpp/plugins/protoxep_reactions/__init__.py b/slixmpp/plugins/xep_0444/__init__.py
similarity index 55%
rename from slixmpp/plugins/protoxep_reactions/__init__.py
rename to slixmpp/plugins/xep_0444/__init__.py
index e107bd16..dff4287c 100644
--- a/slixmpp/plugins/protoxep_reactions/__init__.py
+++ b/slixmpp/plugins/xep_0444/__init__.py
@@ -1,11 +1,11 @@
 """
     Slixmpp: The Slick XMPP Library
-    Copyright (C) 2019 Mathieu Pasquet
+    Copyright (C) 2020 Mathieu Pasquet
     This file is part of Slixmpp.
 
     See the file LICENSE for copying permission.
 """
 from slixmpp.plugins.base import register_plugin
-from slixmpp.plugins.protoxep_reactions.reactions import XEP_Reactions
+from slixmpp.plugins.xep_0444.reactions import XEP_0444
 
-register_plugin(XEP_Reactions)
+register_plugin(XEP_0444)
diff --git a/slixmpp/plugins/protoxep_reactions/reactions.py b/slixmpp/plugins/xep_0444/reactions.py
similarity index 54%
rename from slixmpp/plugins/protoxep_reactions/reactions.py
rename to slixmpp/plugins/xep_0444/reactions.py
index e7af8fcb..bfd12499 100644
--- a/slixmpp/plugins/protoxep_reactions/reactions.py
+++ b/slixmpp/plugins/xep_0444/reactions.py
@@ -1,26 +1,28 @@
 """
     Slixmpp: The Slick XMPP Library
-    Copyright (C) 2019 Mathieu Pasquet
+    Copyright (C) 2020 Mathieu Pasquet
     This file is part of Slixmpp.
 
     See the file LICENSE for copying permission.
 """
 from typing import Iterable
 
+from slixmpp import JID
 from slixmpp.plugins import BasePlugin
 from slixmpp.stanza import Message
 from slixmpp.xmlstream import register_stanza_plugin
 from slixmpp.xmlstream.matcher import MatchXMLMask
 from slixmpp.xmlstream.handler import Callback
 
-from slixmpp.plugins.protoxep_reactions import stanza
+from slixmpp.plugins.xep_0444 import stanza
 
 
-class XEP_Reactions(BasePlugin):
-    name = 'protoxep_reactions'
-    description = 'XEP-XXXX: Message Reactions'
-    dependencies = {'xep_0030'}
+class XEP_0444(BasePlugin):
+    name = 'xep_0444'
+    description = 'XEP-0444: Message Reactions'
+    dependencies = {'xep_0030', 'xep_0334'}
     stanza = stanza
+    namespace = stanza.NS
 
     def plugin_init(self):
         self.xmpp.register_handler(
@@ -30,25 +32,32 @@ class XEP_Reactions(BasePlugin):
                 self._handle_reactions,
             )
         )
-        self.xmpp['xep_0030'].add_feature('urn:xmpp:reactions:0')
         register_stanza_plugin(Message, stanza.Reactions)
+        register_stanza_plugin(stanza.Reactions, stanza.Reaction, iterable=True)
+
+    def session_bind(self, event):
+        self.xmpp['xep_0030'].add_feature(stanza.NS)
 
     def plugin_end(self):
         self.xmpp.remove_handler('Reaction received')
-        self.xmpp['xep_0030'].remove_feature('urn:xmpp:reactions:0')
+        self.xmpp['xep_0030'].remove_feature(stanza.NS)
 
     def _handle_reactions(self, message: Message):
         self.xmpp.event('reactions', message)
 
+    def send_reactions(self, to: JID, to_id: str, reactions: Iterable[str], *, store=True):
+        """Send reactions related to a message"""
+        msg = self.xmpp.make_message(mto=to)
+        self.set_reactions(msg, to_id, reactions)
+        if store:
+            msg.enable('store')
+        msg.send()
+
     @staticmethod
     def set_reactions(message: Message, to_id: str, reactions: Iterable[str]):
-        """
-        Add reactions to a Message object.
-        """
-        reactions_stanza = stanza.Reactions()
-        reactions_stanza['to'] = to_id
+        """Add reactions to a Message object."""
+        message['reactions']['id'] = to_id
         for reaction in reactions:
             reaction_stanza = stanza.Reaction()
             reaction_stanza['value'] = reaction
-            reactions_stanza.append(reaction_stanza)
-        message.append(reactions_stanza)
+            message['reactions'].append(reaction_stanza)
diff --git a/slixmpp/plugins/xep_0444/stanza.py b/slixmpp/plugins/xep_0444/stanza.py
new file mode 100644
index 00000000..338a244e
--- /dev/null
+++ b/slixmpp/plugins/xep_0444/stanza.py
@@ -0,0 +1,60 @@
+"""
+    Slixmpp: The Slick XMPP Library
+    Copyright (C) 2020 Mathieu Pasquet
+    This file is part of Slixmpp.
+
+    See the file LICENSE for copying permission.
+"""
+
+from typing import Set, Iterable
+from slixmpp.xmlstream import ElementBase
+try:
+    from emoji import UNICODE_EMOJI
+except ImportError:
+    UNICODE_EMOJI = None
+
+
+NS = 'urn:xmpp:reactions:0'
+
+class Reactions(ElementBase):
+    name = 'reactions'
+    plugin_attrib = 'reactions'
+    namespace = NS
+    interfaces = {'id', 'values'}
+
+    def get_values(self, *, all_chars=False) -> Set[str]:
+        """"Get all reactions as str"""
+        reactions = set()
+        for reaction in self:
+            value = reaction['value']
+            if UNICODE_EMOJI and not all_chars:
+                if value in UNICODE_EMOJI:
+                    reactions.add(reaction['value'])
+            else:
+                reactions.add(reaction['value'])
+        return reactions
+
+    def set_values(self, values: Iterable[str], *, all_chars=False):
+        """"Set all reactions as str"""
+        for element in self.xml.findall('reaction'):
+            self.xml.remove(element)
+        for reaction_txt in values:
+            reaction = Reaction()
+            reaction.set_value(reaction_txt, all_chars=all_chars)
+            self.append(reaction)
+
+
+class Reaction(ElementBase):
+    name = 'reaction'
+    namespace = NS
+    interfaces = {'value'}
+
+    def get_value(self) -> str:
+        return self.xml.text
+
+    def set_value(self, value: str, *, all_chars=False):
+        if UNICODE_EMOJI and not all_chars:
+            if not value in UNICODE_EMOJI:
+                raise ValueError("%s is not a valid emoji" % value)
+        self.xml.text = value
+
diff --git a/tests/test_stanza_xep_0444.py b/tests/test_stanza_xep_0444.py
new file mode 100644
index 00000000..b4d5739b
--- /dev/null
+++ b/tests/test_stanza_xep_0444.py
@@ -0,0 +1,69 @@
+"""
+    Slixmpp: The Slick XMPP Library
+    Copyright (C) 2020 Mathieu Pasquet
+    This file is part of Slixmpp.
+
+    See the file LICENSE for copying permission.
+"""
+
+import unittest
+from slixmpp import Message
+from slixmpp.test import SlixTest
+from slixmpp.plugins.xep_0444 import XEP_0444
+import slixmpp.plugins.xep_0444.stanza as stanza
+from slixmpp.xmlstream import register_stanza_plugin
+
+
+class TestReactions(SlixTest):
+
+    def setUp(self):
+        register_stanza_plugin(Message, stanza.Reactions)
+        register_stanza_plugin(stanza.Reactions, stanza.Reaction)
+
+    def testCreateReactions(self):
+        """Testing creating Reactions."""
+
+        xmlstring = """
+          <message>
+              <reactions xmlns="urn:xmpp:reactions:0" id="abcd">
+                  <reaction>😃</reaction>
+                  <reaction>🤗</reaction>
+              </reactions>
+          </message>
+        """
+
+        msg = self.Message()
+        msg['reactions']['id'] = 'abcd'
+        msg['reactions']['values'] = ['😃', '🤗']
+
+        self.check(msg, xmlstring, use_values=False)
+
+        self.assertEqual({'😃', '🤗'}, msg['reactions']['values'])
+
+
+    def testCreateReactionsUnrestricted(self):
+        """Testing creating Reactions with the extra all_chars arg."""
+
+        xmlstring = """
+          <message>
+              <reactions xmlns="urn:xmpp:reactions:0" id="abcd">
+                  <reaction>😃</reaction>
+                  <reaction>🤗</reaction>
+                  <reaction>toto</reaction>
+              </reactions>
+          </message>
+        """
+
+        msg = self.Message()
+        msg['reactions']['id'] = 'abcd'
+        msg['reactions'].set_values(['😃', '🤗', 'toto'], all_chars=True)
+
+        self.check(msg, xmlstring, use_values=False)
+
+        self.assertEqual({'😃', '🤗'}, msg['reactions']['values'])
+        self.assertEqual({'😃', '🤗', 'toto'}, msg['reactions'].get_values(all_chars=True))
+        with self.assertRaises(ValueError):
+            msg['reactions'].set_values(['😃', '🤗', 'toto'], all_chars=False)
+
+
+suite = unittest.TestLoader().loadTestsFromTestCase(TestReactions)