diff --git a/packages/7zip.xml b/packages/7zip.xml
index 62a470f6702bf87c90874809f7baa09a14525dba..c431bfca7af71741dbe066e05d97df76fb10bb80 100755
--- a/packages/7zip.xml
+++ b/packages/7zip.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
-<packages>
+<packages:packages xmlns:packages="http://www.wpkg.org/packages">
 
   <package id="7zip" name="7-Zip" revision="%version%.1" reboot="false" priority="0">
     <variable name="version" value="19.00" />
@@ -31,4 +31,4 @@
     </remove>
 
   </package>
-</packages>
+</packages:packages>
diff --git a/packages/gimp.xml b/packages/gimp.xml
index e9fc84b04e46b3a8c707cca03a4de2662853fc6b..3e61a38e15675677afb37eb882206b63f0212b65 100755
--- a/packages/gimp.xml
+++ b/packages/gimp.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--  vim: set softtabstop=3: -->
-<packages>
+<packages:packages xmlns:packages="http://www.wpkg.org/packages">
    <package id="gimp" name="GNU Image Manipulation Program" revision="%version%.1" reboot="false" priority="20">
       <variable name="version" value="2.10.18" />
       <check type="uninstall" condition="exists" path="GIMP %version%" />
@@ -21,4 +21,4 @@
 	       <exit code='1'/><!-- Gone -->
       </remove>
    </package>
-</packages>
+</packages:packages>
diff --git a/packages/git.xml b/packages/git.xml
index 682f99708a4c06c1f7d16142ca8fb773cbe23e28..9b99fc1f77ce5e4b6317716f0d941f0b70b9dc8e 100755
--- a/packages/git.xml
+++ b/packages/git.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<packages>
+<packages:packages xmlns:packages="http://www.wpkg.org/packages">
 <package id="git" name="git" revision="%version%.2" priority="0" reboot="false">
 <variable name="version" value="2.24.0" />
 
@@ -15,4 +15,4 @@
 </remove>
 
 </package>
-</packages>
+</packages:packages>
diff --git a/packages/olex2.xml b/packages/olex2.xml
index 1a386bcb70f021c0392d2afb8a40d34ca7cf1b28..014635ab762a700e917d37e74456b04df49f54fe 100755
--- a/packages/olex2.xml
+++ b/packages/olex2.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--  vim: set softtabstop=3: -->
-<packages>
+<packages:packages xmlns:packages="http://www.wpkg.org/packages">
   <package id="olex2" name="olex2" revision="%version%.1" priority="0" reboot="false">
     <variable name="version" value="1.3" />
 
@@ -24,4 +24,4 @@
     <remove cmd='reg delete HKLM\software\ucam_wpkg.cam.ac.uk\olex2 /f' />
 
   </package>
-</packages>
+</packages:packages>
diff --git a/packages/origin.xml b/packages/origin.xml
index 6be440f0ac2f61f24c45be46d7de6727f718cf75..97e2ac47d3f867456ee33dcf95b8b603f3bb9082 100755
--- a/packages/origin.xml
+++ b/packages/origin.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<packages>
+<packages:packages xmlns:packages="http://www.wpkg.org/packages">
   <package id="origin" name="Origin" revision="%version%.1" priority="0" reboot="false">
 
     <variable name="year" value="2020" />
@@ -42,4 +42,4 @@
     <upgrade include="install"/>
 
   </package>
-</packages>
+</packages:packages>
diff --git a/packages/putty.xml b/packages/putty.xml
index d542d94cb50fd32ff4a88a00cdabece8b2a251d4..6fe107518b14736c52c52380e8afcb6052bdca69 100755
--- a/packages/putty.xml
+++ b/packages/putty.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<packages>
+<packages:packages xmlns:packages="http://www.wpkg.org/packages">
 
 <package  id="putty"  name="PuTTY"  revision="%version%.1"  priority="50"  reboot="false">
 	<variable name="version" value="0.73" />
@@ -34,4 +34,4 @@
 
 </package>
 
-</packages>
+</packages:packages>
diff --git a/packages/spri-shortcuts.xml b/packages/spri-shortcuts.xml
index b4aa98750980bbdd8e0d78aa72ebe6d51cdce73b..6b8e7e89fb8caa44516ec9fd00d33cf6be90cfd5 100755
--- a/packages/spri-shortcuts.xml
+++ b/packages/spri-shortcuts.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--  vim: set softtabstop=3: -->
-<packages>
+<packages:packages xmlns:packages="http://www.wpkg.org/packages">
    <package id="spri-shortcuts" name="SPRI shortcuts" revision="%version%.2" priority="0" reboot="false">
       <variable name="version" value="1.0" />
 
@@ -29,4 +29,4 @@
       </remove>
 
 </package>
-</packages>
+</packages:packages>
diff --git a/packages/vlcclient.xml b/packages/vlcclient.xml
index 79d4779f3744af07db3ea6c035b1a8aa1503ca56..b48ccd6c9163ec29c1504a92259af171840f4299 100755
--- a/packages/vlcclient.xml
+++ b/packages/vlcclient.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<packages>
+<packages:packages xmlns:packages="http://www.wpkg.org/packages">
 <package id="vlcclient" name="VLC media player" revision="%version%.1" priority="40" reboot="false">
 <variable name="version" value="3.0.8" />
 
@@ -15,4 +15,4 @@
   <remove cmd='cmd /c %WPKGSOFTWARE%\wpkg\tools\waitforprocess.cmd Au_.exe' />
 
 </package>
-</packages>
+</packages:packages>
diff --git a/packages/vscode.xml b/packages/vscode.xml
index fc1c9637571e0125553f4dd46224c08e7ab5b12e..be42955d64546a00e5604ec94626f483f25bfad7 100755
--- a/packages/vscode.xml
+++ b/packages/vscode.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--  vim: set softtabstop=3: -->
-<packages>
+<packages:packages xmlns:packages="http://www.wpkg.org/packages">
   <package id="vscode" name="Visual Studio Code" revision="%version%.1" priority="0" reboot="false">
     <variable name="version" value="1.42.1" />
 
@@ -18,4 +18,4 @@
     <remove cmd='"%programfiles%\Microsoft VS Code\unins000.exe" /VERYSILENT' />
 
   </package>
-</packages>
+</packages:packages>
diff --git a/packages/workrave.xml b/packages/workrave.xml
index d23771d9b15001bdce031dbf5dd2dc0a6cfd9e47..ec62f21324747e0c1c2414816a094f35bcbe6aee 100755
--- a/packages/workrave.xml
+++ b/packages/workrave.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<packages>
+<packages:packages xmlns:packages="http://www.wpkg.org/packages">
   <package id="workrave" name="Workrave" revision="%version%.1" priority="0" reboot="false">
   <variable name="version" value="1.10.1" />
 
@@ -17,4 +17,4 @@
   <remove cmd='"%PROGRAMFILES(x86)%\workrave\unins000.exe" /verysilent /norestart /SUPPRESSMSGBOXES' />
 
 </package>
-</packages>
+</packages:packages>
diff --git a/packages/zulip.xml b/packages/zulip.xml
index 6cb0f90a6127e082abf7f49b45c834269304aab6..77b6ea676037cfe7744c4f1bad4930f55ff39a29 100755
--- a/packages/zulip.xml
+++ b/packages/zulip.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<packages>
+<packages:packages xmlns:packages="http://www.wpkg.org/packages">
   <package id="zulip" name="Zulip Desktop App" revision="%version%.1" priority="0" reboot="false">
   <variable name="version" value="4.0.0.0" />
   <variable name="fileversion" value="4.0.0" />
@@ -22,4 +22,4 @@
   <remove cmd='cscript %WPKGSOFTWARE%\wpkg\tools\delete-shortcut.js /folder:"Zulip" ' />
 
 </package>
-</packages>
+</packages:packages>