diff --git a/lib/metanorma/cc/isodoc.rng b/lib/metanorma/cc/isodoc.rng
index 1454d12e..2f97a7f8 100644
--- a/lib/metanorma/cc/isodoc.rng
+++ b/lib/metanorma/cc/isodoc.rng
@@ -17,7 +17,7 @@
   these elements; we just want one namespace for any child grammars
   of this.
 -->
-<!-- VERSION v1.2.1 -->
+<!-- VERSION v1.2.2 -->
 <grammar xmlns:a="http://relaxng.org/ns/compatibility/annotations/1.0" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
   <include href="reqt.rng"/>
   <include href="basicdoc.rng">
@@ -211,6 +211,9 @@
           <data type="boolean"/>
         </attribute>
       </optional>
+      <optional>
+        <attribute name="style"/>
+      </optional>
       <ref name="CitationType"/>
       <oneOrMore>
         <ref name="PureTextElement"/>
@@ -2136,6 +2139,7 @@
     <choice>
       <value>identical</value>
       <value>modified</value>
+      <value>adapted</value>
       <value>restyled</value>
       <value>context-added</value>
       <value>generalisation</value>
diff --git a/lib/metanorma/cc/version.rb b/lib/metanorma/cc/version.rb
index 770e8f8f..0686eabd 100644
--- a/lib/metanorma/cc/version.rb
+++ b/lib/metanorma/cc/version.rb
@@ -1,5 +1,5 @@
 module Metanorma
   module CC
-    VERSION = "2.2.8".freeze
+    VERSION = "2.2.9".freeze
   end
 end