diff --git a/README.md b/README.md
index 198316b..b8c1670 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,10 @@ The database schema and UI stays untouched, so all Piwik statistics can be used
 
 __How to configure/install this plugin / the networks?__
 
+Upload the plugin in the .zip format. 
+
+(You may need to add "enable_plugin_upload = 1" on the your config/config.ini.php file under [General])
+
 After installation and activation of the plugin, open the file `piwik/config/IntranetGeoIP.data.php`
 
 You can their add your location information and their subnetworks.
diff --git a/plugin.json b/plugin.json
index 2a33b0e..3523e78 100644
--- a/plugin.json
+++ b/plugin.json
@@ -10,7 +10,7 @@
   ],
   "theme": false,
   "require": {
-    "piwik": ">=3.0.0-b1,<4.0.0-b1",
+    "piwik": ">=4.0.0-b1,<6.0.1-b1",
     "php": ">=7.0.0,<8.0.0"
   }
 }