diff --git a/pom.xml b/pom.xml
index b147b5d8..78de0f14 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,7 +30,7 @@
         <jdepend.version>2.0</jdepend.version>
         <project.info.version>3.7.0</project.info.version>
         <taglist.version>3.0.0</taglist.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>
         <coverage.reports.dir>${project.build.directory}/target/coverage-reports</coverage.reports.dir>