diff --git a/LICENSE.txt b/LICENSE.txt
index 731d9948..93e3832c 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -7,7 +7,7 @@ conformance statement apply to all XEPs.
 
 ####
 
-This XMPP Extension Protocol is copyright (c) 1999 - 2017 by the XMPP
+This XMPP Extension Protocol is copyright (c) 1999 - 2020 by the XMPP
 Standards Foundation (XSF).
 
 Permission is hereby granted, free of charge, to any person obtaining
diff --git a/examples.xsl b/examples.xsl
index 42834ec5..298c00a3 100644
--- a/examples.xsl
+++ b/examples.xsl
@@ -2,7 +2,7 @@
 
 <!--
 
-Copyright (c) 1999 - 2017 XMPP Standards Foundation
+Copyright (c) 1999 - 2020 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/protopage.xsl b/protopage.xsl
index aac0fdc2..a1c491c1 100644
--- a/protopage.xsl
+++ b/protopage.xsl
@@ -1,6 +1,6 @@
 <!--
 
-Copyright (c) 1999 - 2017 XMPP Standards Foundation
+Copyright (c) 1999 - 2020 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/ref.xsl b/ref.xsl
index 6c77535c..5965eb3a 100644
--- a/ref.xsl
+++ b/ref.xsl
@@ -2,7 +2,7 @@
 
 <!--
 
-Copyright (c) 1999 - 2017 XMPP Standards Foundation
+Copyright (c) 1999 - 2020 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/xep-0001.xml b/xep-0001.xml
index 7389cb7e..7e95be29 100644
--- a/xep-0001.xml
+++ b/xep-0001.xml
@@ -441,7 +441,7 @@ Experimental ----> Proposed ----> Active
 
 <!--
 
-Copyright (c) 1999 - 2017 XMPP Standards Foundation
+Copyright (c) 1999 - 2020 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/xep-0292.xml b/xep-0292.xml
index ec2123ae..a049ff27 100644
--- a/xep-0292.xml
+++ b/xep-0292.xml
@@ -694,7 +694,7 @@ property-key = element key {
 
 <!--
 
-Copyright (c) 1999 - 2017 XMPP Standards Foundation
+Copyright (c) 1999 - 2020 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any
 person obtaining a copy of this software and
diff --git a/xep.dtd b/xep.dtd
index 60339dcb..52c7e842 100644
--- a/xep.dtd
+++ b/xep.dtd
@@ -2,7 +2,7 @@
 
 <!--
 
-Copyright (c) 1999 - 2017 XMPP Standards Foundation
+Copyright (c) 1999 - 2020 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/xep.ent b/xep.ent
index 553da15d..964ce029 100644
--- a/xep.ent
+++ b/xep.ent
@@ -17,7 +17,7 @@
 
 <!--
 
-Copyright (c) 1999 - 2017 XMPP Standards Foundation
+Copyright (c) 1999 - 2020 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/xep.xsd b/xep.xsd
index 29d38c04..9a62fa84 100644
--- a/xep.xsd
+++ b/xep.xsd
@@ -2,7 +2,7 @@
 
 <!--
 
-Copyright (c) 1999 - 2017 XMPP Standards Foundation
+Copyright (c) 1999 - 2020 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal