diff --git a/CREDITS b/CREDITS
index d90570c1e4dc..740e1b876eba 100644
--- a/CREDITS
+++ b/CREDITS
@@ -21,11 +21,14 @@ Additional thanks to:
   Terho Ikonen
   Stephen Kell
   Laura Lehtosalo
+  Peter Ludemann
   Seppo Mattila
   Robin Message
   Alan Mycroft
   Dominic Orchard
   Pekka Rapinoja
+  Guido van Rossum
+  Satnam Singh
   Juha Sorva
   Clay Sweetser
   Jorma Tarhio