diff --git a/src/tools/qdoc/doc/qdoc-manual-contextcmds.qdoc b/src/tools/qdoc/doc/qdoc-manual-contextcmds.qdoc
index 9f5ef59e94..f54254e356 100644
--- a/src/tools/qdoc/doc/qdoc-manual-contextcmds.qdoc
+++ b/src/tools/qdoc/doc/qdoc-manual-contextcmds.qdoc
@@ -428,7 +428,7 @@
     \quotation
         \raw HTML
         <h3>
-        <a href="http://qt-project.org/doc/qt-5.0/qtcore/qchar.html#Joining-enum">Joining</a>
+        <a href="http://doc.qt.io/qt-5/qchar.html#JoiningType-enum">Joining</a>
         QChar::joining () const</h3>
         \endraw
 
@@ -787,7 +787,7 @@
 
     \quotation
         \raw HTML
-        <h3><a href="http://qt-project.org/doc/qt-5.0/qtwidgets/qaction.html">QAction</a>
+        <h3><a href="http://doc.qt.io/qt-5/qaction.html">QAction</a>
         * QMenu::addAction ( const QIcon & <i>icon</i>,
         const QString & <i>text</i> )
         </h3>
diff --git a/src/tools/qdoc/doc/qdoc-manual-markupcmds.qdoc b/src/tools/qdoc/doc/qdoc-manual-markupcmds.qdoc
index 7825fc3a91..9f719ec3bc 100644
--- a/src/tools/qdoc/doc/qdoc-manual-markupcmds.qdoc
+++ b/src/tools/qdoc/doc/qdoc-manual-markupcmds.qdoc
@@ -1479,10 +1479,10 @@
                \printuntil hello
 
                First we create a \l
-               {http://qt-project.org/doc/qt-5.0/qtwidgets/qapplication.html} {QApplication}
+               {http://doc.qt.io/qt-5/qapplication.html} {QApplication}
                object using the \c argc and \c argv parameters, then we
                create a \l
-               {http://qt-project.org/doc/qt-5.0/qtwidgets/qpushbutton.html} {QPushButton}.
+               {http://doc.qt.io/qt-5/qpushbutton.html} {QPushButton}.
            \endquotation
 
     See also \l {printline-command} {\\printline} and \l
@@ -1776,7 +1776,7 @@
 
     \code
        / *!
-          Read the \l {http://qt-project.org/doc/qt-5.0/}
+          Read the \l {http://doc.qt.io/qt-5/}
           {Qt 5.0 Documentation} carefully.
        * /
     \endcode
@@ -1784,7 +1784,7 @@
     QDoc renders this as:
 
     \quotation
-       Read the \l {http://qt-project.org/doc/qt-5.0/}
+       Read the \l {http://doc.qt.io/qt-5/}
        {Qt 5.0 Documentation} carefully.
     \endquotation
 
@@ -2318,7 +2318,7 @@
 
                <tr valign="top" bgcolor="#d0d0d0">
                    <td>
-                   <a href="http://qt-project.org/doc/qt-5.0/qtcore/signalsandslots.html">
+                   <a href="http://doc.qt.io/qt-5/signalsandslots.html">
                        Signals and Slots</a>
                    </td>
                    <td>Signals and slots are used for communication
@@ -2327,7 +2327,7 @@
 
                <tr valign="top" bgcolor="#c0c0c0">
                    <td>
-                   <a href="http://qt-project.org/doc/qt-5.0/qtwidgets/layout.html">
+                   <a href="http://doc.qt.io/qt-5/layout.html">
                        Layout Management</a></td>
                    <td>The Qt layout system provides a simple
                        and powerful way of specifying the layout
@@ -2336,7 +2336,7 @@
 
                <tr valign="top" bgcolor="#d0d0d0">
                    <td>
-                   <a href="http://qt-project.org/doc/qt-5.0/qtgui/dnd.html">
+                   <a href="http://doc.qt.io/qt-5/dnd.html">
                        Drag and Drop</a></td>
                    <td>Drag and drop provides a simple visual
                        mechanism which users can use to transfer
@@ -2437,7 +2437,7 @@
 
                <tr valign="top" bgcolor="#d0d0d0">
                    <td>
-                   <a href="http://qt-project.org/doc/qt-5.0/qtcore/signalsandslots.html">
+                   <a href="http://doc.qt.io/qt-5/signalsandslots.html">
                        Signals and Slots</a>
                    </td>
                    <td>Signals and slots are used for communication
@@ -2499,7 +2499,7 @@
 
                <tr valign="top" bgcolor="#d0d0d0">
                    <td>
-                   <a href="http://qt-project.org/doc/qt-5.0/qtcore/signalsandslots.html">
+                   <a href="http://doc.qt.io/qt-5/signalsandslots.html">
                        Signals and Slots</a>
                    </td>
                    <td>Signals and slots are used for communication
@@ -2508,7 +2508,7 @@
 
                <tr valign="top" bgcolor="#c0c0c0">
                    <td>
-                   <a href="http://qt-project.org/doc/qt-5.0/qtwidgets/layout.html">
+                   <a href="http://doc.qt.io/qt-5/layout.html">
                        Layout Management</a></td>
                    <td>The Qt layout system provides a simple
                        and powerful way of specifying the layout
@@ -2517,7 +2517,7 @@
 
                <tr valign="top" bgcolor="#d0d0d0">
                    <td>
-                   <a href="http://qt-project.org/doc/qt-5.0/qtgui/dnd.html">
+                   <a href="http://doc.qt.io/qt-5/dnd.html">
                        Drag and Drop</a></td>
                    <td>Drag and drop provides a simple visual
                        mechanism which users can use to transfer
@@ -2935,7 +2935,7 @@
            \quotation
                \raw HTML
                    <h3>geometry :
-                   <a href="http://qt-project.org/doc/qt-5.0/qtcore/qrect.html">QRect</a>
+                   <a href="http://doc.qt.io/qt-5/qrect.html">QRect</a>
                    </h3>
                \endraw
 
diff --git a/src/tools/qdoc/doc/qdoc-manual-qdocconf.qdoc b/src/tools/qdoc/doc/qdoc-manual-qdocconf.qdoc
index cf1f7b2426..6ca394a586 100644
--- a/src/tools/qdoc/doc/qdoc-manual-qdocconf.qdoc
+++ b/src/tools/qdoc/doc/qdoc-manual-qdocconf.qdoc
@@ -1410,7 +1410,7 @@
     \code
     project     = Qt
     description = Qt Reference Documentation
-    url         = http://qt-project.org/doc/qt-4.8/
+    url         = http://doc.qt.io/qt-4.8/
 
          ...
     \endcode
@@ -1433,7 +1433,7 @@
     \code
         project     = Qt
         description = Qt Reference Documentation
-        url         = http://qt-project.org/doc/qt-4.8/
+        url         = http://doc.qt.io/qt-4.8/
 
         ...
     \endcode
diff --git a/src/tools/qdoc/doc/qdoc-manual-topiccmds.qdoc b/src/tools/qdoc/doc/qdoc-manual-topiccmds.qdoc
index 1d78eff386..fb3e604396 100644
--- a/src/tools/qdoc/doc/qdoc-manual-topiccmds.qdoc
+++ b/src/tools/qdoc/doc/qdoc-manual-topiccmds.qdoc
@@ -393,11 +393,11 @@
 
         Files:
         \list
-        \li \l{http://qt-project.org/doc/qt-5.0/qtwidgets/widgets-imageviewer-imageviewer-cpp.html}
+        \li \l{http://doc.qt.io/qt-5/qtwidgets-widgets-imageviewer-imageviewer-cpp.html}
            {widgets/imageviewer/imageviewer.cpp}
-        \li \l{http://qt-project.org/doc/qt-5.0/qtwidgets/widgets-imageviewer-imageviewer-h.html}
+        \li \l{http://doc.qt.io/qt-5/qtwidgets-widgets-imageviewer-imageviewer-h.html}
            {widgets/imageviewer/imageviewer.h}
-        \li \l{http://qt-project.org/doc/qt-5.0/qtwidgets/widgets-imageviewer-main-cpp.html}
+        \li \l{http://doc.qt.io/qt-5/qtwidgets-widgets-imageviewer-main-cpp.html}
            {widgets/imageviewer/main.cpp}
         \endlist
 
@@ -414,7 +414,7 @@
 
     \code
     / *!
-        \externalpage http://qt-project.org/doc/
+        \externalpage http://doc.qt.io/
         \title Qt Documentation Site
     * /
     \endcode
@@ -432,7 +432,7 @@
     QDoc renders this as:
 
     \quotation
-        At the \l {http://qt-project.org/doc/}{Qt Documentation Site}
+        At the \l {http://doc.qt.io/}{Qt Documentation Site}
         you can find the latest documentation for Qt, Qt Creator, the Qt SDK
         and much more.
     \endquotation
@@ -443,7 +443,7 @@
 
     \code
     / *!
-        At the \l {http://qt-project.org/doc/}{Qt Documentation Site}
+        At the \l {http://doc.qt.io/}{Qt Documentation Site}
         you can find the latest documentation for Qt, Qt Creator, the Qt SDK
         and much more.
     * /
@@ -543,7 +543,7 @@
          <table width="100%">
              <tr valign="top" bgcolor="#e0e0e0">
              <td><b>
-             <a href="http://qt-project.org/doc/qt-5.0/qtnetwork/qabstractsocket.html">QAbstractSocket</a>
+             <a href="http://doc.qt.io/qt-5/qabstractsocket.html">QAbstractSocket</a>
              </b></td>
              <td>
              The base functionality common to all socket types
@@ -551,7 +551,7 @@
 
              <tr valign="top" bgcolor="#e0e0e0">
              <td><b>
-             <a href="http://qt-project.org/doc/qt-5.0/qtcore/qbuffer.html">QBuffer</a>
+             <a href="http://doc.qt.io/qt-5/qbuffer.html">QBuffer</a>
              </b></td>
              <td>
              QIODevice interface for a QByteArray
@@ -559,7 +559,7 @@
 
              <tr valign="top" bgcolor="#e0e0e0">
              <td><b>
-             <a href="http://qt-project.org/doc/qt-5.0/qtgui/qclipboard.html">QClipboard</a>
+             <a href="http://doc.qt.io/qt-5/qclipboard.html">QClipboard</a>
              </b></td>
              <td>
              Access to the window system clipboard
@@ -635,7 +635,7 @@
                <h3>Functions</h3>
                <ul>
                <li>RandomAccessIterator
-               <a href="http://qt-project.org/doc/qt-5.0/qtcore/qtalgorithms.html#qBinaryFind">qBinaryFind</a></b>
+               <a href="http://doc.qt.io/qt-5/qtalgorithms-obsolete.html#qBinaryFind">qBinaryFind</a></b>
                (RandomAccessIterator begin, RandomAccessIterator end,
                const T & value)</li>
                <li>...</li></ul>
@@ -804,7 +804,7 @@
                <table width="100%">
                    <tr valign="top" bgcolor="#d0d0d0">
                    <td><b>
-                   <a href="http://qt-project.org/doc/qt-5.0/qtnetwork/qabstractsocket.html">QAbstractSocket</a>
+                   <a href="http://doc.qt.io/qt-5/qabstractsocket.html">QAbstractSocket</a>
                    </b></td>
                    <td>
                    The base functionality common to all socket types
@@ -1539,7 +1539,7 @@
     \quotation
         \raw HTML
         <h3>
-            <a href="http://qt-project.org/doc/qt-5.0/qtgui/qpalette.html">
+            <a href="http://doc.qt.io/qt-5/qpalette.html">
                 QPalette
             </a>
             QStyleOption::palette
diff --git a/src/tools/qdoc/doc/qtgui-qdocconf.qdoc b/src/tools/qdoc/doc/qtgui-qdocconf.qdoc
index 2679b42ef2..f8213271c6 100644
--- a/src/tools/qdoc/doc/qtgui-qdocconf.qdoc
+++ b/src/tools/qdoc/doc/qtgui-qdocconf.qdoc
@@ -43,7 +43,7 @@ every statement in the qdocconf file.
 
    project                 = QtGui
    description             = Qt GUI Reference Documentation
-   url                     = http://qt-project.org/doc/qt-$QT_VER/qtgui
+   url                     = http://doc.qt.io/qt-$QT_VER/qtgui-index.html
    version                 = $QT_VERSION
 
    examplesinstallpath     = gui
@@ -125,7 +125,7 @@ name of the index file doesn't adopt the uppercase letters of the project name.
 A short description of the project concerned.
 
 \code
-   url                     = http://qt-project.org/doc/qt-$QT_VER/qtgui
+   url                     = http://doc.qt.io/qt-$QT_VER/qtgui-index.html
 \endcode
 
 The \c url variable holds the base url of the project.