upgrade dependencies (#57)

Author: fommil

project/ProjectPlugin.scala

@@ -26,7 +26,7 @@ object ProjectKeys {
       "com.github.ghik" %% "silencer-lib" % silencerVersion % "provided"
     )
 
-  val specs2Version = "4.2.0"
+  val specs2Version = "4.3.0"
 
   def extraScalacOptions(scalaVersion: String) =
     CrossVersion.partialVersion(scalaVersion) match {
@@ -86,7 +86,7 @@ object ProjectPlugin extends AutoPlugin {
       // WORKAROUND https://github.com/ghik/silencer/issues/7
       scalacOptions -= "-Ywarn-dead-code",
       libraryDependencies ++= Seq(
-        "org.scalaz" %% "scalaz-core"          % "7.2.24",
+        "org.scalaz" %% "scalaz-core"          % "7.2.25",
         "org.specs2" %% "specs2-core"          % specs2Version % "test",
         "org.specs2" %% "specs2-matcher-extra" % specs2Version % "test"
       )