diff --git a/Readme.md b/Readme.md
index 29ebf59b..5d4f6c35 100644
--- a/Readme.md
+++ b/Readme.md
@@ -10,7 +10,7 @@ Partner or Fritz) in order to be used comfortably. Read the
 documentation for your GUI of choice for information about how to use
 Stockfish with it.
 
-This version of Stockfish supports up to 128 cores. The engine defaults
+This version of Stockfish supports up to 512 cores. The engine defaults
 to one search thread, so it is therefore recommended to inspect the value of
 the *Threads* UCI parameter, and to make sure it equals the number of CPU
 cores on your computer.