diff --git a/README.md b/README.md
index aac343e8..2dcae25d 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ pkNX also provides some utility to extract from supported container types, e.g.
 
 pkNX is a Windows Forms application which requires [.NET Framework v4.6](https://www.microsoft.com/en-us/download/details.aspx?id=48137).
 
-The executable can be built with any compiler that supports C# 8.
+The executable can be built with any compiler that supports C# 9.
 
 ## Dependencies