diff --git a/.travis.yml b/.travis.yml
index 1a4d93a1..be15a861 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,7 @@ php:
 
 env:
     - PHPUNIT_VERSION='3.7.*'
-    - PHPUNIT_VERSION='4.0.17'
+    - PHPUNIT_VERSION='4.0.*'
 
 before_script:
     - composer require --no-update phpunit/phpunit=$PHPUNIT_VERSION