diff --git a/.travis.yml b/.travis.yml
index 41b31179..671832f0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,10 @@
 sudo: false
 
 addons:
-  postgresql: "9.3"
+  postgresql: "9.4"
   apt:
     packages:
+    - postgresql-plpython-9.4
     - pkg-config
     - libcairo2-dev
     - libjpeg8-dev