diff --git a/swh/deposit/tests/api/test_checks.py b/swh/deposit/tests/api/test_checks.py
--- a/swh/deposit/tests/api/test_checks.py
+++ b/swh/deposit/tests/api/test_checks.py
@@ -179,6 +179,20 @@
             </entry>
             """,
         ),
+        (
+            "author-two-names",
+            f"""\
+            <entry {XMLNS}>
+                <url>some url</url>
+                <codemeta:name>bar</codemeta:name>
+                <codemeta:author>
+                    <codemeta:name>someone</codemeta:name>
+                    <codemeta:name>an alias</codemeta:name>
+                </codemeta:author>
+                {PROVENANCE_XML}
+            </entry>
+            """,
+        ),
         (
             "codemeta-affiliation",
             f"""\
@@ -275,6 +289,18 @@
                         <codemeta:name>University 2</codemeta:name>
                     </codemeta:affiliation>
                 </codemeta:contributor>
+                <codemeta:maintainer>
+                    <codemeta:name>A Maintainer</codemeta:name>
+                    <codemeta:affiliation>
+                        <codemeta:name>University 3</codemeta:name>
+                    </codemeta:affiliation>
+                </codemeta:maintainer>
+                <codemeta:copyrightHolder>
+                    <codemeta:name>University 3</codemeta:name>
+                </codemeta:copyrightHolder>
+                <codemeta:creator>
+                    <codemeta:name>A Maintainer</codemeta:name>
+                </codemeta:creator>
                 <codemeta:applicationCategory>something</codemeta:applicationCategory>
                 <codemeta:applicationSubCategory>something else</codemeta:applicationSubCategory>
                 <codemeta:installUrl>http://example.org/</codemeta:installUrl>
diff --git a/swh/deposit/xsd/codemeta.xsd b/swh/deposit/xsd/codemeta.xsd
--- a/swh/deposit/xsd/codemeta.xsd
+++ b/swh/deposit/xsd/codemeta.xsd
@@ -20,10 +20,11 @@
     <xsd:union memberTypes="xsd:date xsd:dateTime"/>
   </xsd:simpleType>
 
-  <xsd:element name="author" type="codemeta:PersonOrOrganization">
-  </xsd:element>
-  <xsd:element name="contributor" type="codemeta:PersonOrOrganization">
-  </xsd:element>
+  <xsd:element name="author" type="codemeta:PersonOrOrganization" />
+  <xsd:element name="contributor" type="codemeta:PersonOrOrganization" />
+  <xsd:element name="copyrightHolder" type="codemeta:PersonOrOrganization" />
+  <xsd:element name="creator" type="codemeta:PersonOrOrganization" />
+  <xsd:element name="maintainer" type="codemeta:PersonOrOrganization" />
 
   <xsd:complexType name="PersonOrOrganization">
     <!-- Allows anything, but at least <codemeta:name> should be present.