diff --git a/.travis.yml b/.travis.yml
index c14f106..9f829ac 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,9 @@
 language: scala
+
+sudo: false
+
 scala:
-   - 2.11.1
+   - 2.11.7
 jdk:
   - openjdk6
   - openjdk7
diff --git a/project/build.properties b/project/build.properties
index 07b0ebb..02cb92b 100755
--- a/project/build.properties
+++ b/project/build.properties
@@ -1,2 +1,2 @@
-sbt.version=0.13.8
+sbt.version=0.13.9
 
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 6bc747d..01d0a14 100755
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,7 +1,7 @@
 
 addSbtPlugin("com.github.gseitz" % "sbt-release" % "1.0.0")
 
-addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "0.5.0")
+addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "1.1")
 
 addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.0.0")