diff --git a/.travis.yml b/.travis.yml
index d2ec5115..94dd96f7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,7 @@ php:
     - 7.1
     - 7.2
     - 7.3
+    - 7.4snapshot
 
 before_install:
     # turn off XDebug