diff --git a/.travis.yml b/.travis.yml
index e1a0ce70..cd2db492 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,13 @@ matrix:
     - node_js: "4"
       addons:
         postgresql: "9.1"
+      dist: precise
     - node_js: "6"
       addons:
         postgresql: "9.4"
+    - node_js: "8"
+      addons:
+        postgresql: "9.6"
+    - node_js: "9"
+      addons:
+        postgresql: "9.6"