diff --git a/composer.json b/composer.json
index 651f1f8..5a80839 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
 	"require": {
 		"ext-pcre": "*",
 		"intervention/httpauth": "~2.0",
-		"monolog/monolog": "~1.1",
+		"monolog/monolog": "~1.1|~2.0",
 		"mrclay/jsmin-php": "~2",
 		"mrclay/props-dic": "^2.2",
 		"php": "^5.3.0 || ^7.0",