diff --git a/.travis.yml b/.travis.yml
index 0378de05..3cc39a58 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,13 +8,13 @@ dist: trusty
 matrix:
   include:
    - php: 5.3
+     dist: precise
    - php: 5.4
    - php: 5.5
    - php: 5.6
    - php: 7.0
    - php: 7.1
    - php: 7.2
-   - php: nightly
   fast_finish: true
 
 services: