diff --git a/composer.json b/composer.json
index a0b883e..8c7010e 100644
--- a/composer.json
+++ b/composer.json
@@ -37,7 +37,7 @@
     },
     "require-dev": {
         "mockery/mockery": "^1.2",
-        "orchestra/testbench": "~3.5",
+        "orchestra/testbench": "3.7.*",
         "phpunit/phpunit": "^7.0"
     },
     "autoload": {