test on supported PHP versions only

dannyvankooten · dannyvankooten · commit 97c9b67efd75 · 2020-01-16T09:46:55.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,8 +1,8 @@
 language: php
 
 php:
-  - 7.2
   - 7.3
+  - 7.4
 
 install:
   - travis_retry composer install --no-interaction
