diff --git a/web/src/main/webapp/xslt/services/thesaurus/ldregistry-to-skos.xsl b/web/src/main/webapp/xslt/services/thesaurus/ldregistry-to-skos.xsl
index 1cec16ae730..02cdb7aa395 100644
--- a/web/src/main/webapp/xslt/services/thesaurus/ldregistry-to-skos.xsl
+++ b/web/src/main/webapp/xslt/services/thesaurus/ldregistry-to-skos.xsl
@@ -71,7 +71,6 @@
 
 
         <dcterms:issued><xsl:value-of select="if ($thesaurusDate != '') then $thesaurusDate else $now"/></dcterms:issued>
-        <dcterms:modified><xsl:value-of select="if ($thesaurusDate != '') then $thesaurusDate else $now"/></dcterms:modified>
 
         <xsl:for-each select="distinct-values($concepts/*[skos:narrower and not(skos:broader)]/@rdf:about)">
           <skos:hasTopConcept rdf:resource="{.}"/>
diff --git a/web/src/main/webapp/xslt/services/thesaurus/registry-to-skos.xsl b/web/src/main/webapp/xslt/services/thesaurus/registry-to-skos.xsl
index faae053719c..8f12f4bedbc 100644
--- a/web/src/main/webapp/xslt/services/thesaurus/registry-to-skos.xsl
+++ b/web/src/main/webapp/xslt/services/thesaurus/registry-to-skos.xsl
@@ -126,7 +126,6 @@
 
 
         <dcterms:issued><xsl:value-of select="if ($thesaurusDate != '') then $thesaurusDate else $now"/></dcterms:issued>
-        <dcterms:modified><xsl:value-of select="if ($thesaurusDate != '') then $thesaurusDate else $now"/></dcterms:modified>
 
         <!-- Add top concepts for all items with no parent -->
         <xsl:if test="$hasBroaderNarrowerLinks">
@@ -220,4 +219,4 @@
 
   <xsl:template mode="concept"
                 match="*"/>
-</xsl:stylesheet>
\ No newline at end of file
+</xsl:stylesheet>