diff --git a/README.md b/README.md
index b8169de..ea66a16 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ functionality.
 
 ## Dependencies
 
-* `Cython >= 0.28` (optional, only for building). If Cython is not available, the C files are not
+* `Cython >= 3` (optional, only for building). If Cython is not available, the C files are not
   regenerated from their source.
 
 ## Quick installation guide