diff --git a/.travis.yml b/.travis.yml
index 417709be..eb49fba2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,9 @@
 language: python
 python:
+- '3.9'
+- '3.8'
+- '3.7'
 - '3.6'
-- '3.5'
-- '3.4'
-- '2.7'
 env:
 - LXML=true
 - LXML=false
diff --git a/fastkml/test_main.py b/fastkml/test_main.py
index 958290aa..ea64713b 100644
--- a/fastkml/test_main.py
+++ b/fastkml/test_main.py
@@ -2141,6 +2141,7 @@ def test_track(self):
             g.geometry.__geo_interface__,
             {
                 'type': 'LineString',
+                'bbox': (0.0, 0.0, 1.0, 1.0),
                 'coordinates': ((0.0, 0.0), (1.0, 1.0))})
 
     def test_multitrack(self):