diff --git a/admin/build.sh b/admin/build.sh
index 11a76205..6eee5d83 100755
--- a/admin/build.sh
+++ b/admin/build.sh
@@ -39,7 +39,7 @@ if [[ "$TRAVIS_TAG" =~ $tagPat ]]; then
     echo "Releasing $tagVer on Java version $currentJvmVer according to 'scalaVersionsByJvm' in build.sbt."
   fi
 
-  extraTarget="+publish-signed"
+  extraTarget="+publishSigned"
   cat admin/gpg.sbt >> project/plugins.sbt
   cp admin/publish-settings.sbt .
 
diff --git a/admin/gpg.sbt b/admin/gpg.sbt
index 68ae4641..3b55e214 100644
--- a/admin/gpg.sbt
+++ b/admin/gpg.sbt
@@ -1,2 +1 @@
-
-addSbtPlugin("com.typesafe.sbt" % "sbt-pgp" % "0.8.3") // only added when publishing, see build.sh
+addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.1.2-1") // only added when publishing, see build.sh
diff --git a/build.sbt b/build.sbt
index 64bd5438..40ecdf33 100644
--- a/build.sbt
+++ b/build.sbt
@@ -21,8 +21,6 @@ scalaVersion in ThisBuild := "2.13.0-M5"  // for testing
 
 OsgiKeys.exportPackage := Seq(s"scala.swing.*;version=${version.value}")
 
-licenses := Seq("Apache 2.0" -> url("http://www.apache.org/licenses/LICENSE-2.0"))
-
 mimaPreviousVersion := Some("2.1.0")
 
 // set the prompt (for this build) to include the project id.
diff --git a/project/build.properties b/project/build.properties
index 53646512..c0bab049 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.18
\ No newline at end of file
+sbt.version=1.2.8
diff --git a/project/plugins.sbt b/project/plugins.sbt
index c2369199..57a656c8 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1 +1 @@
-addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "1.0.14")
\ No newline at end of file
+addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "2.0.0")