diff --git a/build.sbt b/build.sbt
index 2cb13b9..adfd79e 100644
--- a/build.sbt
+++ b/build.sbt
@@ -4,7 +4,7 @@ lazy val root = (project in file(".")).
   settings(
     inThisBuild(List(
       organization := "com.example",
-      scalaVersion := "2.12.3",
+      scalaVersion := "2.12.8",
       version      := "0.1.0-SNAPSHOT")),
     name := "LibreCaptcha",
     libraryDependencies += scalaTest % Test,
diff --git a/project/build.properties b/project/build.properties
index 394cb75..c0bab04 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.0.4
+sbt.version=1.2.8