diff --git a/pom.xml b/pom.xml
index 418d6848..91885322 100644
--- a/pom.xml
+++ b/pom.xml
@@ -213,7 +213,7 @@ under the License.
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-javadoc-plugin</artifactId>
-          <version>3.3.0</version>
+          <version>3.2.0</version><!-- last version to support Java 7 -->
           <configuration>
             <notimestamp>true</notimestamp><!-- avoid noise for svn/gitpubsub -->
           </configuration>