diff --git a/.travis.yml b/.travis.yml
index 0550811..bdaa1a8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,10 +22,10 @@ env:
   # Only test source install on latest supported OSes.
   - distro: centos7
     playbook: test-source.yml
-    php_version: 7.0.13
+    php_version: 7.1.9
   - distro: ubuntu1604
     playbook: test-source.yml
-    php_version: 7.0.13
+    php_version: 7.1.9
 
 script:
   # Configure test script so we can run extra tests after playbook is run.