diff --git a/README.md b/README.md
index de4f83b..f273f63 100644
--- a/README.md
+++ b/README.md
@@ -4,11 +4,16 @@
 
 This plugin adds Silverstripe template support to PHPStorm and other JetBrains IDEs.
 
+## PHPStorm Requirements
+
+This plugin requires PHPStorm to be running version 2020.3 or greater.
+
 ### Installation
 
 Until the plugin is ready for a stable release and is available on the JetBrains plugin marketplace, it must be
 installed from disk:
 
+- Disable the existing Silverstripe plugin if you have it installed
 - Download the latest release from [the releases page](https://github.com/kinglozzer/idea-silverstripe-plugin/releases)
 - Open the plugins menu in your IDE
 - Open the options menu (`⋮` in PHPStorm)