diff --git a/examples/uos.pas b/examples/uos.pas
index c596392..f07e7a2 100644
--- a/examples/uos.pas
+++ b/examples/uos.pas
@@ -74,7 +74,7 @@ interface
 Classes, ctypes, Math, sysutils;
 
 const
-  uos_version : cint32 = 2201231;
+  uos_version : cint32 = 2210221;
   
 {$IF DEFINED(bs2b)}
   BS2B_HIGH_CLEVEL = (CInt32(700)) or ((CInt32(30)) shl 16);
diff --git a/src/uos.pas b/src/uos.pas
index c596392..f07e7a2 100644
--- a/src/uos.pas
+++ b/src/uos.pas
@@ -74,7 +74,7 @@ interface
 Classes, ctypes, Math, sysutils;
 
 const
-  uos_version : cint32 = 2201231;
+  uos_version : cint32 = 2210221;
   
 {$IF DEFINED(bs2b)}
   BS2B_HIGH_CLEVEL = (CInt32(700)) or ((CInt32(30)) shl 16);