1 files changed, 4 insertions, 1 deletions

diff --git a/composer.json b/composer.json
index 902ccec..d5e29f3 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,10 @@
     "require": {
         "php": ">=5.3.0"
     },
+    "require-dev": {
+        "phpunit/phpunit": "~4.5"
+    },
     "autoload": {
         "psr-0": { "PHPImageWorkshop": "src" }
     }
-}
\ No newline at end of file
+}