diff --git a/ivy/src/main/scala/sbt/IvyRetrieve.scala b/ivy/src/main/scala/sbt/IvyRetrieve.scala
index e9dba98ee..b3bf04563 100644
--- a/ivy/src/main/scala/sbt/IvyRetrieve.scala
+++ b/ivy/src/main/scala/sbt/IvyRetrieve.scala
@@ -107,9 +107,12 @@ object IvyRetrieve {
     })
     val isDefault = Option(dep.getDescriptor) map { _.isDefault }
     val configurations = dep.getConfigurations(confReport.getConfiguration).toArray.toList
-    val licenses: Seq[(String, URL)] = mdOpt match {
-      case Some(md) => md.getLicenses.toArray.toVector collect { case lic: IvyLicense => (lic.getName, new URL(lic.getUrl)) }
-      case _        => Nil
+    val licenses: Seq[(String, Option[String])] = mdOpt match {
+      case Some(md) => md.getLicenses.toArray.toVector collect {
+        case lic: IvyLicense =>
+          (lic.getName, Option(lic.getUrl))
+      }
+      case _ => Nil
     }
     val callers = dep.getCallers(confReport.getConfiguration).toArray.toVector map { toCaller }
     val (resolved, missing) = artifacts(moduleId, confReport getDownloadReports revId)
diff --git a/ivy/src/main/scala/sbt/UpdateReport.scala b/ivy/src/main/scala/sbt/UpdateReport.scala
index f8c2804d5..41ea4fd80 100644
--- a/ivy/src/main/scala/sbt/UpdateReport.scala
+++ b/ivy/src/main/scala/sbt/UpdateReport.scala
@@ -105,7 +105,7 @@ final class ModuleReport(
     val isDefault: Option[Boolean],
     val branch: Option[String],
     val configurations: Seq[String],
-    val licenses: Seq[(String, URL)],
+    val licenses: Seq[(String, Option[String])],
     val callers: Seq[Caller]) {
 
   private[this] lazy val arts: Seq[String] = artifacts.map(_.toString) ++ missingArtifacts.map(art => "(MISSING) " + art)
@@ -162,7 +162,7 @@ final class ModuleReport(
     isDefault: Option[Boolean] = isDefault,
     branch: Option[String] = branch,
     configurations: Seq[String] = configurations,
-    licenses: Seq[(String, URL)] = licenses,
+    licenses: Seq[(String, Option[String])] = licenses,
     callers: Seq[Caller] = callers): ModuleReport =
     new ModuleReport(module, artifacts, missingArtifacts, status, publicationDate, resolver, artifactResolver,
       evicted, evictedData, evictedReason, problem, homepage, extraAttributes, isDefault, branch, configurations, licenses, callers)
diff --git a/main/actions/src/main/scala/sbt/CacheIvy.scala b/main/actions/src/main/scala/sbt/CacheIvy.scala
index 47cf6b494..3b74251d4 100644
--- a/main/actions/src/main/scala/sbt/CacheIvy.scala
+++ b/main/actions/src/main/scala/sbt/CacheIvy.scala
@@ -66,7 +66,7 @@ object CacheIvy {
   implicit def confReportFormat(implicit m: Format[String], mr: Format[Seq[ModuleReport]], mdr: Format[Seq[ModuleDetailReport]], mi: Format[Seq[ModuleID]]): Format[ConfigurationReport] =
     wrap[ConfigurationReport, (String, Seq[ModuleReport], Seq[ModuleDetailReport], Seq[ModuleID])](r => (r.configuration, r.modules, r.details, r.evicted), { case (c, m, d, v) => new ConfigurationReport(c, m, d, v) })
   implicit def moduleReportFormat(implicit cf: Format[Seq[Caller]], ff: Format[File]): Format[ModuleReport] = {
-    wrap[ModuleReport, (ModuleID, Seq[(Artifact, File)], Seq[Artifact], Option[String], Option[Long], Option[String], Option[String], Boolean, Option[String], Option[String], Option[String], Option[String], Map[String, String], Option[Boolean], Option[String], Seq[String], Seq[(String, URL)], Seq[Caller])](
+    wrap[ModuleReport, (ModuleID, Seq[(Artifact, File)], Seq[Artifact], Option[String], Option[Long], Option[String], Option[String], Boolean, Option[String], Option[String], Option[String], Option[String], Map[String, String], Option[Boolean], Option[String], Seq[String], Seq[(String, Option[String])], Seq[Caller])](
       m => (m.module, m.artifacts, m.missingArtifacts, m.status, m.publicationDate map { _.getTime }, m.resolver, m.artifactResolver, m.evicted, m.evictedData, m.evictedReason, m.problem, m.homepage, m.extraAttributes, m.isDefault, m.branch, m.configurations, m.licenses, m.callers),
       { case (m, as, ms, s, pd, r, a, e, ed, er, p, h, ea, d, b, cs, ls, ks) => new ModuleReport(m, as, ms, s, pd map { new ju.Date(_) }, r, a, e, ed, er, p, h, ea, d, b, cs, ls, ks) })
   }