diff --git a/lib/delphi/src/Thrift.pas b/lib/delphi/src/Thrift.pas
index 6696a19..9e1b0bb 100644
--- a/lib/delphi/src/Thrift.pas
+++ b/lib/delphi/src/Thrift.pas
@@ -28,7 +28,7 @@
   Thrift.Protocol;
 
 const
-  Version = '0.20.0';
+  Version = '0.21.0';
 
 type
   TException = Thrift.Exception.TException; // compatibility alias