diff --git a/.travis.yml b/.travis.yml
index 0b27c832..7c8c111b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,7 @@ php:
     - '7.1'
     - '7.2'
     - '7.3'
+    - '7.4snapshot'
 matrix:
     include:
         - php: '5.4'