diff --git a/project/BasicSettings.scala b/project/BasicSettings.scala
index fb12045..4396317 100644
--- a/project/BasicSettings.scala
+++ b/project/BasicSettings.scala
@@ -17,7 +17,7 @@ sealed trait Basics {
   final val projectStartYear      = 2015
 
   final val buildScalaVersion     = "2.11.8"
-  final val extraScalaVersions    = Seq.empty
+  final val extraScalaVersions    = Seq("2.12.1")
   final val minimumJavaVersion    = "1.8"
   final val defaultOptimize       = false