diff --git a/composer.json b/composer.json
index 98088c6..27a0153 100644
--- a/composer.json
+++ b/composer.json
@@ -31,7 +31,7 @@
     },
     "require-dev": {
         "mockery/mockery": "^1.0",
-        "phpunit/phpunit": "^5.7|^6.0|^7.0|^8.0|^9.0|^10.0",
+        "phpunit/phpunit": "^5.7|^6.0|^7.0|^8.0|^9.0",
         "orchestra/testbench": "^3.0|^4.0|^5.0|^6.0|^7.0|^8.0"
     },
     "suggest": {