1 files changed, 5 insertions, 1 deletions
diff --git a/build.sbt b/build.sbt
index 069aa974..65c74155 100644
--- a/build.sbt
+++ b/build.sbt
@@ -32,7 +32,9 @@ def scalacOptionsVersion(scalaVersion: String): Seq[String] = {
   }
 }
 
-scalacOptions := scalacOptionsVersion(scalaVersion.value)
+scalacOptions := scalacOptionsVersion(scalaVersion.value) ++ Seq(
+  "-deprecation"
+)
 
 def javacOptionsVersion(scalaVersion: String): Seq[String] = {
   Seq() ++ {
@@ -64,6 +66,8 @@ libraryDependencies += "com.github.scopt" %% "scopt" % "3.6.0"
 
 libraryDependencies += "net.jcazevedo" %% "moultingyaml" % "0.4.0"
 
+libraryDependencies += "org.json4s" %% "json4s-native" % "3.5.3"
+
 // Assembly
 
 assemblyJarName in assembly := "firrtl.jar"