diff --git a/slixmpp/plugins/xep_0115/caps.py b/slixmpp/plugins/xep_0115/caps.py
index b7f29516..9b2d499e 100644
--- a/slixmpp/plugins/xep_0115/caps.py
+++ b/slixmpp/plugins/xep_0115/caps.py
@@ -15,6 +15,7 @@ from slixmpp.stanza import StreamFeatures, Presence, Iq
 from slixmpp.xmlstream import register_stanza_plugin, JID
 from slixmpp.xmlstream.handler import Callback
 from slixmpp.xmlstream.matcher import StanzaPath
+from slixmpp.util import MemoryCache
 from slixmpp import asyncio
 from slixmpp.exceptions import XMPPError, IqError, IqTimeout
 from slixmpp.plugins import BasePlugin
@@ -37,7 +38,8 @@ class XEP_0115(BasePlugin):
     default_config = {
         'hash': 'sha-1',
         'caps_node': None,
-        'broadcast': True
+        'broadcast': True,
+        'cache': None,
     }
 
     def plugin_init(self):
@@ -48,6 +50,9 @@ class XEP_0115(BasePlugin):
         if self.caps_node is None:
             self.caps_node = 'http://slixmpp.com/ver/%s' % __version__
 
+        if self.cache is None:
+            self.cache = MemoryCache()
+
         register_stanza_plugin(Presence, stanza.Capabilities)
         register_stanza_plugin(StreamFeatures, stanza.Capabilities)
 
diff --git a/slixmpp/plugins/xep_0115/static.py b/slixmpp/plugins/xep_0115/static.py
index d47c8fd8..6c2e910b 100644
--- a/slixmpp/plugins/xep_0115/static.py
+++ b/slixmpp/plugins/xep_0115/static.py
@@ -33,7 +33,6 @@ class StaticCaps(object):
         self.disco = self.xmpp['xep_0030']
         self.caps = self.xmpp['xep_0115']
         self.static = static
-        self.ver_cache = {}
         self.jid_vers = {}
 
     def supports(self, jid, node, ifrom, data):
@@ -128,7 +127,7 @@ class StaticCaps(object):
         info = data.get('info', None)
         if not verstring or not info:
             return
-        self.ver_cache[verstring] = info
+        self.caps.cache.store(verstring, info)
 
     def assign_verstring(self, jid, node, ifrom, data):
         if isinstance(jid, JID):
@@ -139,4 +138,7 @@ class StaticCaps(object):
         return self.jid_vers.get(jid, None)
 
     def get_caps(self, jid, node, ifrom, data):
-        return self.ver_cache.get(data.get('verstring', None), None)
+        verstring = data.get('verstring', None)
+        if verstring is None:
+            return None
+        return self.caps.cache.retrieve(verstring)