diff --git a/.travis.yml b/.travis.yml
index e2c0986..fbea42c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,7 @@ php:
   - 7.0
   - 7.1
   - 7.2
+  - 7.3
   - nightly
   - hhvm
 
@@ -18,7 +19,7 @@ matrix:
     - php: nightly
   include:
     - php: 5.3
-      dist: precise
+      dist: trusty
 
 before_script:
   - composer install