diff --git a/doc/README b/doc/README
index f45bf0c1..5e0f8ee1 100644
--- a/doc/README
+++ b/doc/README
@@ -1,4 +1,4 @@
-Bitcoin 0.5.0 BETA
+Bitcoin 0.5.1 BETA
 
 Copyright (c) 2009-2011 Bitcoin Developers
 Distributed under the MIT/X11 software license, see the accompanying
diff --git a/doc/README_windows.txt b/doc/README_windows.txt
index ea2f14c4..d237615f 100644
--- a/doc/README_windows.txt
+++ b/doc/README_windows.txt
@@ -1,4 +1,4 @@
-Bitcoin 0.5.0 BETA
+Bitcoin 0.5.1 BETA
 
 Copyright (c) 2009-2011 Bitcoin Developers
 Distributed under the MIT/X11 software license, see the accompanying