diff --git a/build.sbt b/build.sbt
index 1e283547..f2fa105c 100644
--- a/build.sbt
+++ b/build.sbt
@@ -13,7 +13,7 @@ lazy val commonSettings = Seq(
   libraryDependencies += "org.scalatest" %% "scalatest" % "3.0.5" % "test",
   libraryDependencies += "org.json4s" %% "json4s-jackson" % "3.6.1",
   libraryDependencies += "org.scala-lang" % "scala-reflect" % scalaVersion.value,
-  //libraryDependencies += "edu.berkeley.cs" %% "firrtl-interpreter" % "1.2-SNAPSHOT",
+  libraryDependencies += "edu.berkeley.cs" %% "firrtl-interpreter" % "1.2-SNAPSHOT",
   libraryDependencies += "com.github.scopt" %% "scopt" % "3.7.0",
   addCompilerPlugin("org.scalamacros" % "paradise" % "2.1.0" cross CrossVersion.full),
   resolvers ++= Seq(
diff --git a/sims/firesim b/sims/firesim
index f26ea913..65be3cae 160000
--- a/sims/firesim
+++ b/sims/firesim
@@ -1 +1 @@
-Subproject commit f26ea913a08e2ae43f4ed11a3796030706179f4a
+Subproject commit 65be3cae99022375fb2babbc242cc433d5671b86