diff -Nru php-sabre-dav-2.1-2.1.9/debian/changelog php-sabre-dav-2.1-2.1.9/debian/changelog
--- php-sabre-dav-2.1-2.1.9/debian/changelog	2016-01-26 06:39:27.000000000 -0800
+++ php-sabre-dav-2.1-2.1.9/debian/changelog	2016-03-15 08:49:54.000000000 -0700
@@ -1,3 +1,11 @@
+php-sabre-dav-2.1 (2.1.9-1ubuntu1) xenial; urgency=medium
+
+  * Update to PHP7.0 build and test dependencies.
+  * Add php-mbstring as a build & test dependency.
+    - LP: #1557599
+
+ -- Nishanth Aravamudan <nish.aravamudan@canonical.com>  Tue, 15 Mar 2016 08:36:27 -0700
+
 php-sabre-dav-2.1 (2.1.9-1) unstable; urgency=medium
 
   [ Thomas Müller ]
diff -Nru php-sabre-dav-2.1-2.1.9/debian/control php-sabre-dav-2.1-2.1.9/debian/control
--- php-sabre-dav-2.1-2.1.9/debian/control	2016-01-26 06:38:48.000000000 -0800
+++ php-sabre-dav-2.1-2.1.9/debian/control	2016-03-15 08:46:35.000000000 -0700
@@ -1,17 +1,19 @@
 Source: php-sabre-dav-2.1
 Section: php
 Priority: optional
-Maintainer: ownCloud for Debian maintainers <pkg-owncloud-maintainers@lists.alioth.debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: ownCloud for Debian maintainers <pkg-owncloud-maintainers@lists.alioth.debian.org>
 Uploaders: David Prévot <taffit@debian.org>
 Build-Depends: debhelper (>= 8.0.0),
                help2man,
                php-codesniffer,
+               php-mbstring,
                php-sabre-event,
                php-sabre-http (<< 4),
                php-sabre-http (>= 3.0.5-2~),
                php-sabre-vobject-3,
-               php5-curl,
-               php5-sqlite,
+               php-curl,
+               php-sqlite3,
                phpab,
                phpunit,
                pkg-php-tools (>= 1.29~),
diff -Nru php-sabre-dav-2.1-2.1.9/debian/tests/control php-sabre-dav-2.1-2.1.9/debian/tests/control
--- php-sabre-dav-2.1-2.1.9/debian/tests/control	2016-01-26 06:37:45.000000000 -0800
+++ php-sabre-dav-2.1-2.1.9/debian/tests/control	2016-03-15 08:36:24.000000000 -0700
@@ -3,4 +3,4 @@
 
 Test-Command: mkdir --parents vendor && phpab --output vendor/autoload.php --basedir vendor --template debian/autoload.tests.php.tpl tests/Sabre && phpunit --configuration tests/phpunit.xml
 Restrictions: rw-build-tree
-Depends: @, php5-curl, php5-sqlite, phpab, phpunit
+Depends: @, php-curl, php-mbstring, php-sqlite3, phpab, phpunit