diff --git a/lib/metanorma/ribose/isodoc.rng b/lib/metanorma/ribose/isodoc.rng
index 33b05d9..1b9c0a6 100644
--- a/lib/metanorma/ribose/isodoc.rng
+++ b/lib/metanorma/ribose/isodoc.rng
@@ -571,6 +571,11 @@
             <ref name="MultilingualRenderingType"/>
           </attribute>
         </optional>
+        <optional>
+          <attribute name="linenums">
+            <data type="boolean"/>
+          </attribute>
+        </optional>
         <optional>
           <ref name="tname"/>
         </optional>
@@ -1238,6 +1243,11 @@
   </define>
   <define name="concept">
     <element name="concept">
+      <optional>
+        <attribute name="bold">
+          <data type="boolean"/>
+        </attribute>
+      </optional>
       <optional>
         <attribute name="ital">
           <data type="boolean"/>
@@ -2653,7 +2663,7 @@
       <value>full</value>
       <value>short</value>
       <value>id</value>
-      <value>modspec</value>
+      <text/>
     </choice>
   </define>
   <define name="erefTypeWithConnective">
diff --git a/lib/metanorma/ribose/version.rb b/lib/metanorma/ribose/version.rb
index 7df3051..c8f1611 100644
--- a/lib/metanorma/ribose/version.rb
+++ b/lib/metanorma/ribose/version.rb
@@ -1,5 +1,5 @@
 module Metanorma
   module Ribose
-    VERSION = "2.2.0".freeze
+    VERSION = "2.2.1".freeze
   end
 end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 1b63017..40fd88c 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -69,6 +69,8 @@ def xmlpp(xml)
   XSL
   Nokogiri::XSLT(xsl).transform(Nokogiri::XML(xml, &:noblanks))
     .to_xml(indent: 2, encoding: "UTF-8")
+    .gsub(%r{<fetched>[^<]+</fetched>}, "<fetched/>")
+    .gsub(%r{ schema-version="[^"]+"}, "")
 end
 
 ASCIIDOC_BLANK_HDR = <<~"HDR".freeze