diff --git a/spark/pom.xml b/spark/pom.xml
index 6cbe96a..06d4fc0 100644
--- a/spark/pom.xml
+++ b/spark/pom.xml
@@ -71,7 +71,7 @@
         <dependency>
             <groupId>dnsjava</groupId>
             <artifactId>dnsjava</artifactId>
-            <version>2.1.1</version>
+            <version>3.6.0</version>
         </dependency>
         <dependency>
             <groupId>com.github.scopt</groupId>