diff --git a/dev-tools/doap/lucene.rdf b/dev-tools/doap/lucene.rdf
index 0a32cf04d9c..329a766d509 100644
--- a/dev-tools/doap/lucene.rdf
+++ b/dev-tools/doap/lucene.rdf
@@ -67,12 +67,21 @@
     </maintainer>
 
     <!-- NOTE: please insert releases in numeric order, NOT chronologically. -->
+    <release>
+      <Version>
+        <name>lucene-8.1.0</name>
+        <created>2019-05-16</created>
+        <revision>8.1.0</revision>
+      </Version>
+    </release>
     <release>
       <Version>
         <name>lucene-8.0.0</name>
         <created>2019-03-14</created>
         <revision>8.0.0</revision>
       </Version>
+    </release>
+    <release>
       <Version>
         <name>lucene-7.7.1</name>
         <created>2019-03-1</created>
diff --git a/dev-tools/doap/solr.rdf b/dev-tools/doap/solr.rdf
index 2b1961ba0d4..8bd6e6f9f2f 100644
--- a/dev-tools/doap/solr.rdf
+++ b/dev-tools/doap/solr.rdf
@@ -67,12 +67,21 @@
     </maintainer>
 
     <!-- NOTE: please insert releases in numeric order, NOT chronologically. -->
+    <release>
+      <Version>
+        <name>solr-8.1.0</name>
+        <created>2019-05-16</created>
+        <revision>8.1.0</revision>
+      </Version>
+    </release>
     <release>
       <Version>
         <name>solr-8.0.0</name>
         <created>2019-03-14</created>
         <revision>8.0.0</revision>
       </Version>
+    </release>
+    <release>
       <Version>
         <name>solr-7.7.1</name>
         <created>2019-03-1</created>