diff --git a/.travis.yml b/.travis.yml
index 0f9e8128..ade9a17f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,39 +1,40 @@
 branches:
     only:
         - master
 
 language: c
 
 compiler:
     - clang
     - gcc
 
 env:
     - GTK=gtk2
     - GTK=gtk3
 
 before_install:
     - sudo apt-get update -qq
+    - sudo apt-get -y install -t xenial-backports ninja-build
 
 install:
     - sudo apt-get -qq install
-      python3 python3-pip python3-setuptools python3-wheel ninja-build
+      python3 python3-pip python3-setuptools python3-wheel
       libcairo2-dev libcairo-gobject2
       libgtk2.0-dev libgtk-3-dev gtk-doc-tools
     - sudo pip install cpp-coveralls
     - sudo pip3 install 'meson<0.57'
 
 script:
     - meson -Db_coverage=true -Dgtk=$GTK _build &&
       meson compile -C _build &&
       meson test    -C _build
 
 after_success:
     - if [ "$CC" = "gcc" ]; then
       coveralls -x c -e demo -e src/tests -e src/cpml/tests -e src/adg/tests --gcov-options '\-lp';
       fi
 
 notifications:
     email:
         recipients:
             - ntd@entidi.it