diff --git a/.gitignore b/.gitignore
index d4e82c78..a698468f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@ vendor
 composer.lock
 build
 .phpunit.result.cache
+.phpunit.cache
 
 # Files editors may leave around that aren't related to any kind of
 # build artifacts