diff --git a/ChangeLog b/ChangeLog
index 5cb8be75..4ccd0cf1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -21369,3 +21369,7 @@
 	* Added a workaround to 'RDCart::updateLength()' to prevent invalid
 	data values from being written to the 'CART.MINIMUM_TALK_LENGTH'
 	field.
+2021-04-05 Fred Gleason <fredg@paravelsystems.com>
+	* Cleaned up compilation warnings in rddbmgr(8).
+	* Rebased rddbmgr(8) to use 'QCoreApplication' rather than
+	'QApplication'.
diff --git a/utils/rddbmgr/rddbmgr.cpp b/utils/rddbmgr/rddbmgr.cpp
index 00d9235f..9cfaa30d 100644
--- a/utils/rddbmgr/rddbmgr.cpp
+++ b/utils/rddbmgr/rddbmgr.cpp
@@ -2,7 +2,7 @@
 //
 // Rivendell database management utility
 //
-//   (C) Copyright 2018 Fred Gleason <fredg@paravelsystems.com>
+//   (C) Copyright 2018-2021 Fred Gleason <fredg@paravelsystems.com>
 //
 //   This program is free software; you can redistribute it and/or modify
 //   it under the terms of the GNU General Public License version 2 as
@@ -23,11 +23,11 @@
 #include <unistd.h>
 #include <sys/types.h>
 
-#include <qapplication.h>
-#include <qfileinfo.h>
-#include <qsqldatabase.h>
-#include <qsqlerror.h>
-#include <qstringlist.h>
+#include <QCoreApplication>
+#include <QFileInfo>
+#include <QSqlDatabase>
+#include <QSqlError>
+#include <QStringList>
 
 #include <dbversion.h>
 #include <rdcmd_switch.h>
@@ -469,7 +469,7 @@ bool MainObject::DropIndex(const QString &tbl_name,const QString &idx_name,
 
 int main(int argc,char *argv[])
 {
-  QApplication a(argc,argv,false);
+  QCoreApplication a(argc,argv);
 
   new MainObject();
   return a.exec();
diff --git a/utils/rddbmgr/rddbmgr.h b/utils/rddbmgr/rddbmgr.h
index 5f9e5f38..4a79aed3 100644
--- a/utils/rddbmgr/rddbmgr.h
+++ b/utils/rddbmgr/rddbmgr.h
@@ -2,7 +2,7 @@
 //
 // Rivendell database management utility
 //
-//   (C) Copyright 2018-2020 Fred Gleason <fredg@paravelsystems.com>
+//   (C) Copyright 2018-2021 Fred Gleason <fredg@paravelsystems.com>
 //
 //   This program is free software; you can redistribute it and/or modify
 //   it under the terms of the GNU General Public License version 2 as
@@ -21,7 +21,7 @@
 #ifndef RDDBMGR_H
 #define RDDBMGR_H
 
-#include <qobject.h>
+#include <QObject>
 
 #include <rdconfig.h>
 #include <rdfeed.h>
diff --git a/utils/rddbmgr/revertschema.cpp b/utils/rddbmgr/revertschema.cpp
index 5b204caf..4ef3d2c3 100644
--- a/utils/rddbmgr/revertschema.cpp
+++ b/utils/rddbmgr/revertschema.cpp
@@ -371,7 +371,7 @@ bool MainObject::RevertSchema(int cur_schema,int set_schema,QString *err_msg)
       }
       else {
 	sql=QString("update PODCASTS set ")+
-	  QString().sprintf("SHELF_LIFE=%d where ",
+	  QString().sprintf("SHELF_LIFE=%lld where ",
 			    q->value(1).toDateTime().
 			    daysTo(q->value(2).toDateTime()))+
 	  QString().sprintf("ID=%u",q->value(0).toUInt());