diff --git a/project/SparkBuild.scala b/project/SparkBuild.scala
index 3480f4f50d..f12e94eee5 100644
--- a/project/SparkBuild.scala
+++ b/project/SparkBuild.scala
@@ -265,7 +265,7 @@ object SparkBuild extends PomBuild {
       .orElse(sys.props.get("java.home").map { p => new File(p).getParentFile().getAbsolutePath() })
       .map(file),
     publishMavenStyle := true,
-    unidocGenjavadocVersion := "0.17",
+    unidocGenjavadocVersion := "0.18",
 
     // Override SBT's default resolvers:
     resolvers := Seq(