diff --git a/internal/util-position/src/main/scala/sbt/internal/util/Positions.scala b/internal/util-position/src/main/scala/sbt/internal/util/Positions.scala
index ca3626db1..a991d2c03 100644
--- a/internal/util-position/src/main/scala/sbt/internal/util/Positions.scala
+++ b/internal/util-position/src/main/scala/sbt/internal/util/Positions.scala
@@ -1,5 +1,7 @@
 package sbt.internal.util
 
+import scala.language.experimental.macros
+
 sealed trait SourcePosition
 
 sealed trait FilePosition extends SourcePosition {
diff --git a/project/build.properties b/project/build.properties
index 5620cc502..0cd8b0798 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.2.1
+sbt.version=1.2.3