diff --git a/README.md b/README.md
index efbfa3c..bd5d467 100644
--- a/README.md
+++ b/README.md
@@ -4,15 +4,10 @@ Roundcube for YunoHost
 This is a work-in-progress package review to update Roundcube to 1.1.x
 and make use of new YunoHost facilities - e.g. app helpers.
 
-**Please note that upgrade from official app has not been fully tested
-and so is not safe yet. Use this app at your own risk, but feel free to
-report issues and/or improvements!**
-
 ## TODO
 
  * Ask for rcmcarddav installation and/or check if *Baikal* or *ownCloud*
    is installed
- * Test to upgrade from the current Roundcube version
  * ...
 
 ## Links ##
diff --git a/patches/00-installto-opts.patch b/patches/00-installto-opts.patch
index fc27f50..5c66498 100644
--- a/patches/00-installto-opts.patch
+++ b/patches/00-installto-opts.patch
@@ -1,5 +1,5 @@
---- a/bin/installto.sh	2016-03-26 19:17:32.092002076 +0100
-+++ b/bin/installto.sh	2016-03-26 19:26:37.787511189 +0100
+--- a/bin/installto.sh	2016-03-30 15:46:11.686447589 +0200
++++ b/bin/installto.sh	2016-03-30 15:49:27.184064426 +0200
 @@ -23,6 +23,9 @@
  
  require_once INSTALL_PATH . 'program/include/clisetup.php';
@@ -30,3 +30,16 @@
    $err = false;
    echo "Copying files to target location...";
    $dirs = array('program','installer','bin','SQL','plugins','skins');
+@@ -77,7 +82,11 @@
+ 
+   if (!$err) {
+     echo "Running update script at target...\n";
+-    system("cd $target_dir && php bin/update.sh --version=$oldversion");
++    $command = "cd $target_dir && php bin/update.sh --version=$oldversion";
++    if ($opts['accept']) {
++      $command .= " --accept";
++    }
++    system($command);
+     echo "All done.\n";
+   }
+ }
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 530e469..6a694d0 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -83,7 +83,8 @@ init_composer() {
 
   # install composer
   curl -sS https://getcomposer.org/installer \
-    | exec_as "$AS_USER" php -- --quiet --install-dir="$DESTDIR" \
+    | exec_as "$AS_USER" COMPOSER_HOME="${DESTDIR}/.composer" \
+        php -- --quiet --install-dir="$DESTDIR" \
     || die "Unable to install Composer"
 
   # install composer.json
diff --git a/scripts/upgrade b/scripts/upgrade
index 00565d7..1bfc8c7 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -63,7 +63,7 @@ if [[ -f ${DESTDIR}/composer.json ]]; then
   # TODO: update new Roundcube dependencies versions
   exec_composer www-data "$DESTDIR" update --no-dev
 else
-  init_composer "$DESTDIR"
+  init_composer "$DESTDIR" www-data
 fi
 
 # Install some plugins manually