diff --git a/.gitignore b/.gitignore
index a6ac9a5..58a28a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,5 @@ vendor
 build
 #A library must not provide a composer.lock file
 composer.lock
+
+.phpunit.result.cache
diff --git a/.travis.yml b/.travis.yml
index a7937ef..33bb217 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,7 @@ php:
   - '7.1'
   - '7.2'
   - '7.3'
+  - '7.4'
 
 env:
   global: