diff --git a/composer.json b/composer.json
index f815b3b..0fa2d83 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
         }
     ],
     "require": {
-        "craftcms/cms": ">=3.1"
+        "craftcms/cms": "^3.0.0"
     },
     "autoload": {
         "psr-4": {