diff -Nru ubuntu-defaults-zh-cn-0.12/debian/changelog ubuntu-defaults-zh-cn-0.13/debian/changelog
--- ubuntu-defaults-zh-cn-0.12/debian/changelog	2013-11-23 17:43:47.000000000 +0000
+++ ubuntu-defaults-zh-cn-0.13/debian/changelog	2015-12-13 22:28:21.000000000 +0000
@@ -1,3 +1,10 @@
+ubuntu-defaults-zh-cn (0.13) xenial; urgency=high
+
+  * Drop gwibber-service-sina & gwibber-service-sohu, since gwibber no
+    longer exists.
+
+ -- Dimitri John Ledkov <xnox@ubuntu.com>  Sun, 13 Dec 2015 22:27:53 +0000
+
 ubuntu-defaults-zh-cn (0.12) trusty; urgency=low
 
   * Replace transitional packages ttf-{wqy-zenhei,arphic-ukai} with their real
diff -Nru ubuntu-defaults-zh-cn-0.12/depends.txt ubuntu-defaults-zh-cn-0.13/depends.txt
--- ubuntu-defaults-zh-cn-0.12/depends.txt	2013-11-23 17:43:13.000000000 +0000
+++ ubuntu-defaults-zh-cn-0.13/depends.txt	2015-12-13 22:27:44.000000000 +0000
@@ -15,8 +15,6 @@
 # Example:
 # manpages-de
 # texlive-lang-german
-gwibber-service-sina
-gwibber-service-sohu
 
 # subset of complete language support:
 cmap-adobe-gb1