diff --git a/python-tornado.changes b/python-tornado.changes
index b51ee8d..0113e0d 100644
--- a/python-tornado.changes
+++ b/python-tornado.changes
@@ -1,3 +1,20 @@
+-------------------------------------------------------------------
+Wed Dec 23 12:48:58 UTC 2015 - jmassaguerpla@suse.com
+
+- add singledispatch and backports_abc dependencies                                 
+                                                                                  
+as stated in docs/releases/v4.3.0.rst                                             
+                                                                                  
+                                                                                  
+* Tornado has several new dependencies: (...)                                     
+  ``singledispatch`` on all Python versions prior to 3.4 (This was an             
+  optional dependency in prior versions of Tornado, and is now                    
+  mandatory), and ``backports_abc>=0.4`` on all versions prior to                 
+  3.5                                                                             
+                                                                                  
+Since this python module works with python version >= 2.7.9 (otherwise it would be called python3-tornado, afaiu) 
+ 
+
 -------------------------------------------------------------------
 Wed Dec  9 11:26:45 UTC 2015 - toddrme2178@gmail.com
 
diff --git a/python-tornado.spec b/python-tornado.spec
index ad04cf6..46cdbf9 100644
--- a/python-tornado.spec
+++ b/python-tornado.spec
@@ -53,7 +53,9 @@ BuildRequires:  python-certifi
 Requires:       python-certifi
 %endif
 
+Requires:       python-backports_abc
 Requires:       python-simplejson
+Requires:       python-singledispatch
 %if 0%{?suse_version}
 Recommends:     python-futures
 Recommends:     python-pycares