diff --git a/plexpy/datafactory.py b/plexpy/datafactory.py
index 9a8cdeba..d29813e1 100644
--- a/plexpy/datafactory.py
+++ b/plexpy/datafactory.py
@@ -826,3 +826,36 @@ class DataFactory(object):
             return None
 
         return query
+
+    def update_rating_key(self, old_rating_key='', new_rating_key='', media_type=''):
+        monitor_db = database.MonitorDatabase()
+
+        if new_rating_key.isdigit():
+            logger.info(u"PlexPy DataFactory :: Updating rating key %s to %s in the session history database." % (old_rating_key, new_rating_key))
+            if media_type == 'movie' or media_type == 'episode' or media_type == 'track':
+                monitor_db.action('UPDATE session_history SET rating_key = ? WHERE rating_key = ?', [new_rating_key, old_rating_key])
+                monitor_db.action('UPDATE session_history_media_info SET rating_key = ? WHERE rating_key = ?', [new_rating_key, old_rating_key])
+                monitor_db.action('UPDATE session_history_metadata SET rating_key = ? WHERE rating_key = ?', [new_rating_key, old_rating_key])
+                monitor_db.action('UPDATE session_history_metadata SET thumb = replace(thumb, ?, ?) WHERE thumb LIKE "/library/metadata/%s/thumb/%%"' % old_rating_key, 
+                                  [old_rating_key, new_rating_key])
+
+            if media_type == 'season' or media_type == 'album':
+                monitor_db.action('UPDATE session_history SET parent_rating_key = ? WHERE parent_rating_key = ?', [new_rating_key, old_rating_key])
+                monitor_db.action('UPDATE session_history_metadata SET parent_rating_key = ? WHERE parent_rating_key = ?', [new_rating_key, old_rating_key])
+                monitor_db.action('UPDATE session_history_metadata SET parent_thumb = replace(parent_thumb, ?, ?) WHERE parent_thumb LIKE "/library/metadata/%s/thumb/%%"' % old_rating_key, 
+                                  [old_rating_key, new_rating_key])
+
+            if media_type == 'show' or media_type == 'artist':
+                monitor_db.action('UPDATE session_history SET grandparent_rating_key = ? WHERE grandparent_rating_key = ?', [new_rating_key, old_rating_key])
+                monitor_db.action('UPDATE session_history_metadata SET grandparent_rating_key = ? WHERE grandparent_rating_key = ?', [new_rating_key, old_rating_key])
+                monitor_db.action('UPDATE session_history_metadata SET grandparent_thumb = replace(grandparent_thumb, ?, ?) WHERE grandparent_thumb LIKE "/library/metadata/%s/thumb/%%"' % old_rating_key, 
+                                  [old_rating_key, new_rating_key])
+
+            if media_type == 'movie' or media_type == 'show':
+                monitor_db.action('UPDATE session_history_metadata SET art = replace(art, ?, ?) WHERE art LIKE "/library/metadata/%s/art/%%"' % old_rating_key, 
+                                  [old_rating_key, new_rating_key])
+
+            return 'Updated rating key %s to %s.' % (old_rating_key, new_rating_key)
+        else:
+            return 'Unable to update rating key. Input new_rating_key not valid.'
+
diff --git a/plexpy/webserve.py b/plexpy/webserve.py
index 28983de1..b951554a 100644
--- a/plexpy/webserve.py
+++ b/plexpy/webserve.py
@@ -1353,3 +1353,19 @@ class WebInterface(object):
         else:
             logger.warn('Unable to retrieve data.')
             return serve_template(templatename="info_search_results_list.html", data=None, title="Search Result List")
+
+    @cherrypy.expose
+    def update_history_rating_key(self, old_rating_key, new_rating_key, media_type, **kwargs):
+        data_factory = datafactory.DataFactory()
+
+        if new_rating_key:
+            update_row = data_factory.update_rating_key(old_rating_key=old_rating_key,
+                                                        new_rating_key=new_rating_key,
+                                                        media_type=media_type)
+
+            if update_row:
+                cherrypy.response.headers['Content-type'] = 'application/json'
+                return json.dumps({'message': update_row})
+        else:
+            cherrypy.response.headers['Content-type'] = 'application/json'
+            return json.dumps({'message': 'no data received'})