diff --git a/.travis.yml b/.travis.yml
index 886a8b6..a8d05e4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,13 @@
 language: scala
 
+# Needed for openjdk6
+dist: precise
+sudo: required
+addons:
+  hosts:
+    - localhost
+  hostname: localhost.local
+
 env:
   global:
     # PGP_PASSPHRASE
@@ -9,11 +17,10 @@ env:
     # SONA_PASS
     - secure: "E6OE1MoZ4VQHRNtEyyKfmnj8Bj7uGpgHLmlvJR/iy7qdxBbNA8cEz/Qs64uTft5zfZ9bJsQhiuxLcTtFKYKFP4qvExz8FyilhmUwKjD5Eux4FAeBjDBeXBETM1JYFB+JYP9l8dcQecMeGpd46I52pLjYYmNyQQ1YpOvK29GIQLA="
 
-before_install:
-  - sudo hostname "$(hostname | cut -c1-63)"
-  - sed -e "s/^\\(127\\.0\\.0\\.1.*\\)/\\1 $(hostname | cut -c1-63)/" /etc/hosts > /tmp/hosts
-  - sudo mv /tmp/hosts /etc/hosts
 script:
+  # work around https://github.com/travis-ci/travis-ci/issues/9713
+  - if [[ $JAVA_HOME = *java-6* ]]; then jdk_switcher use openjdk6; fi
+  - java -version
   - admin/build.sh
 
 addons:
@@ -24,7 +31,9 @@ addons:
 jdk:
   - openjdk6
   - oraclejdk8
+  - openjdk11
 notifications:
   email:
     - adriaan.moors@lightbend.com
     - danslapman@gmail.com
+    - seth.tisue@lightbend.com
diff --git a/build.sbt b/build.sbt
index 6d985b3..3bba094 100644
--- a/build.sbt
+++ b/build.sbt
@@ -4,8 +4,8 @@ import ScalaModulePlugin._
 // plugin logic of build based on https://github.com/retronym/boxer
 
 scalaVersionsByJvm in ThisBuild := {
-  val j67 = List("2.11.8", "2.11.11")
-  val j89 = List("2.12.0", "2.12.1", "2.12.2", "2.13.0-M1")
+  val j67 = List("2.11.12")
+  val j89 = List("2.12.6", "2.12.8", "2.13.0-M1")
   // Map[JvmVersion, List[(ScalaVersion, UseForPublishing)]]
   Map(
     6 -> j67.map(_ -> true),
@@ -13,7 +13,8 @@ scalaVersionsByJvm in ThisBuild := {
     8 -> j89.map(_ -> true),
     9 -> j89.map(_ -> false),
     10 -> j89.map(_ -> false),
-    11 -> j89.map(_ -> false)
+    11 -> j89.map(_ -> false),
+    12 -> j89.map(_ -> false)
   )
 }
 
diff --git a/project/build.properties b/project/build.properties
index 133a8f1..8e682c5 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.17
+sbt.version=0.13.18