diff --git a/.travis.yml b/.travis.yml
index 62ec3ee0c3..07b0ef8eeb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,11 +8,16 @@ addons:
     - python-yaml
 node_js:
   - "0.10"
+env:
+- CARTO=0.9.5 MAPNIK=2.1.0
+- CARTO=0.9.5 MAPNIK=3.0.0
+- CARTO=0.16.3 MAPNIK=2.1.0
+- CARTO=0.16.3 MAPNIK=3.0.0
 install:
-  - npm install carto@0.12.1
+  - npm install carto@$CARTO
   - mkdir -p data/world_boundaries data/simplified-land-polygons-complete-3857 data/ne_110m_admin_0_boundary_lines_land data/ne_10m_populated_places data/land-polygons-split-3857
   - touch data/world_boundaries/builtup_area.shp data/simplified-land-polygons-complete-3857/simplified_land_polygons.shp data/ne_110m_admin_0_boundary_lines_land/ne_110m_admin_0_boundary_lines_land.shp data/ne_10m_populated_places/ne_10m_populated_places_fixed.shp data/land-polygons-split-3857/land_polygons.shp
 script:
   - jsonlint project.mml
-  - set -o pipefail && ./node_modules/carto/bin/carto project.mml | xmllint - | wc -l
+  - set -o pipefail && ./node_modules/carto/bin/carto -a $MAPNIK project.mml | xmllint - | wc -l
   - ./scripts/travis_check_project_files