diff --git a/.travis.yml b/.travis.yml
index 516b7ac9..eed3ab43 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,10 +1,12 @@
 
 language: php
 php:
-  - '5.6'
-  - '7.0'
-  - '7.1'
-  - '7.2'
+  - 5.6
+  - 7.0
+  - 7.1
+  - 7.2
+  - 7.3
+  - 7.4
 
 cache:
   directories: