diff --git a/.travis.yml b/.travis.yml
index 983351096..46708f159 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -49,6 +49,7 @@ addons:
       - libvdpau-dev
       - libxcb-xkb-dev
       - libxkbcommon-dev
+      - libatspi2.0-dev
       - lintian
       - quilt
       - valac
diff --git a/.travis/build.sh b/.travis/build.sh
index 91d9e06b1..1a1f55d78 100755
--- a/.travis/build.sh
+++ b/.travis/build.sh
@@ -17,7 +17,7 @@ XKB_PATH="$BUILD/libxkbcommon"
 XKB_CACHE_VERSION="3"
 
 QT_PATH="$BUILD/qt"
-QT_CACHE_VERSION="4"
+QT_CACHE_VERSION="5"
 QT_PATCH="$EXTERNAL/patches/qtbase_${QT_VERSION//\./_}.diff"
 
 BREAKPAD_PATH="$BUILD/breakpad"