diff -u libxfixes-5.0/debian/control libxfixes-5.0/debian/control
--- libxfixes-5.0/debian/control
+++ libxfixes-5.0/debian/control
@@ -7,7 +7,7 @@
 Build-Depends:
  debhelper (>= 8.1.3),
  dh-autoreconf,
- libx11-dev (>= 2:1.3.3-2),
+ libx11-dev (>= 2:1.4.99.1-0ubuntu2.3),
  x11proto-fixes-dev (>= 1:5.0-2ubuntu1~),
  pkg-config,
  quilt,
diff -u libxfixes-5.0/debian/changelog libxfixes-5.0/debian/changelog
--- libxfixes-5.0/debian/changelog
+++ libxfixes-5.0/debian/changelog
@@ -1,3 +1,11 @@
+libxfixes (1:5.0-4ubuntu4.4) precise-security; urgency=medium
+
+  * SECURITY UPDATE: buffer overflow in MakeBigReq (LP: #1441381)
+    - debian/control: change Build-Depends to libx11 security update
+    - CVE-2013-7439
+
+ -- Marc Deslauriers <marc.deslauriers@ubuntu.com>  Mon, 13 Apr 2015 08:09:50 -0400
+
 libxfixes (1:5.0-4ubuntu4.3) precise-security; urgency=medium
 
   * No change rebuild in the security pocket