diff --git a/Make.bat b/Make.bat
index 11a755ffe..b5d2901c1 100644
--- a/Make.bat
+++ b/Make.bat
@@ -348,7 +348,7 @@ REM Main build sequence Ends
 
 :SIGN_INSTALLER
     ECHO Attempting to sign the installer...
-    CALL "%PGADMIN_SIGNTOOL_DIR%\signtool.exe" sign /t http://timestamp.entrust.net/TSS/RFC3161sha2TS "%DISTROOT%\%INSTALLERNAME%"
+    CALL "%PGADMIN_SIGNTOOL_DIR%\signtool.exe" sign /t http://time.certum.pl "%DISTROOT%\%INSTALLERNAME%"
     IF %ERRORLEVEL% NEQ 0 (
         ECHO.
         ECHO ************************************************************