diff --git a/lib/delphi/src/Thrift.pas b/lib/delphi/src/Thrift.pas
index 8b13406..189640a 100644
--- a/lib/delphi/src/Thrift.pas
+++ b/lib/delphi/src/Thrift.pas
@@ -25,7 +25,7 @@
   SysUtils, Thrift.Protocol;
 
 const
-  Version = '0.9.0-dev';
+  Version = '1.0.0-dev';
 
 type
   IProcessor = interface