diff --git a/build.sbt b/build.sbt
index 557db6a..d50cf63 100644
--- a/build.sbt
+++ b/build.sbt
@@ -11,7 +11,7 @@ bintrayRepository := "sbt-plugin-releases"
 bintrayPackage := name.value
 bintrayReleaseOnPublish := false
 
-crossSbtVersions := Seq("0.13.16", "1.0.1")
+crossSbtVersions := Seq("0.13.18", "1.0.4")
 
 scriptedSettings
 scriptedDependencies := publishLocal.value
diff --git a/project/build.properties b/project/build.properties
index c091b86..8e682c5 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.16
+sbt.version=0.13.18
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 208df31..698f2b6 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,4 +1,4 @@
-addSbtPlugin("org.foundweekends" % "sbt-bintray" % "0.5.1")
-addSbtPlugin("com.github.gseitz" % "sbt-release" % "1.0.6")
+addSbtPlugin("org.foundweekends" % "sbt-bintray" % "0.5.6")
+addSbtPlugin("com.github.gseitz" % "sbt-release" % "1.0.13")
 
 libraryDependencies += "org.scala-sbt" % "scripted-plugin" % sbtVersion.value
diff --git a/src/main/scala/com/typesafe/sbt/SbtProguard.scala b/src/main/scala/com/typesafe/sbt/SbtProguard.scala
index ab70ea3..7d43046 100644
--- a/src/main/scala/com/typesafe/sbt/SbtProguard.scala
+++ b/src/main/scala/com/typesafe/sbt/SbtProguard.scala
@@ -23,7 +23,7 @@ object SbtProguard extends AutoPlugin {
   override lazy val projectSettings: Seq[Setting[_]] = inConfig(Proguard)(baseSettings) ++ dependencies
 
   def baseSettings: Seq[Setting[_]] = Seq(
-    proguardVersion := "6.2.2",
+    proguardVersion := "7.0.0",
     proguardDirectory := crossTarget.value / "proguard",
     proguardConfiguration := proguardDirectory.value / "configuration.pro",
     artifactPath := proguardDirectory.value / (artifactPath in packageBin in Compile).value.getName,
@@ -64,6 +64,7 @@ object SbtProguard extends AutoPlugin {
     }
 
   def dependencies: Seq[Setting[_]] = Seq(
+    resolvers += Resolver.bintrayRepo("guardsquare", "proguard"),
     libraryDependencies += groupId((proguardVersion in Proguard).value) % "proguard-base" % (proguardVersion in Proguard).value % Proguard
   )