diff --git a/.travis.yml b/.travis.yml
index d9d32372..0e85c92b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,7 @@ sudo: false
 cache: pip
 
 addons:
+  postgresql: "9.6"
   apt:
     sources:
       - pov-wkhtmltopdf