diff --git a/build.sbt b/build.sbt
index d8d471f..76a3f04 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,6 +1,8 @@
 import com.typesafe.sbt.packager.docker.DockerPermissionStrategy
 import com.typesafe.sbt.packager.docker.DockerPlugin.autoImport.dockerPermissionStrategy
 import com.typesafe.sbt.packager.docker._
+import java.text.SimpleDateFormat
+import java.util.Date
 
 lazy val `reactivemanifesto` = (project in file("."))
   .enablePlugins(PlayScala, LauncherJarPlugin)