diff --git a/pom.xml b/pom.xml
index fcd9bf0..fa4c930 100644
--- a/pom.xml
+++ b/pom.xml
@@ -31,7 +31,7 @@
         <jxr.version>3.5.0</jxr.version>
         <taglist.version>3.2.1</taglist.version>
         <spotbugs.version>4.8.6.5</spotbugs.version>
-        <m3.site.version>3.20.0</m3.site.version>
+        <m3.site.version>3.21.0</m3.site.version>
         <changelog.version>2.2</changelog.version>
         <changelog.version>2.2</changelog.version>
         <bundle.plugin.version>5.1.9</bundle.plugin.version>