diff --git a/build.sc b/build.sc
index 6054cdf..e8be2cc 100644
--- a/build.sc
+++ b/build.sc
@@ -8,26 +8,13 @@ object ivys {
   val ivyVersions = Map(
     "org.chipsalliance::chisel" -> "6.0.0",
     "org.chipsalliance:::chisel-plugin" -> "$chisel",
-    "edu.berkeley.cs::chiseltest" -> "6.0.0",
-    "edu.berkeley.cs::firrtl2" -> "$chiseltest",
-    "org.scalatest::scalatest" -> "3.2.17",
-    "org.scalacheck::scalacheck" -> "1.17.0",
-    "org.scalatestplus::scalacheck-1-17" -> "3.2.17.0",
-    "com.lihaoyi::mainargs" -> "0.5.4",
-    "com.outr::scribe" -> "3.13.0",
-    "com.lihaoyi::pprint" -> "0.8.1",
-    "com.lihaoyi::os-lib" -> "0.9.2",
-    "org.json4s::json4s-jackson" -> "4.0.7",
-    "org.scala-lang.modules::scala-parallel-collections" -> "1.0.4",
-    "com.lihaoyi::utest" -> "0.8.2",
-    "org.scalanlp::breeze" -> "2.1.0",
-    "com.chuusai::shapeless" -> "2.3.10",
-    "com.github.jnr:jnr-ffi" -> "2.2.15",
+    "edu.berkeley.cs::chiseltest" -> "6.0-LOCAL-SNAPSHOT",
+    "com.lihaoyi::mainargs" -> "0.5.4+",
     "org.scala-lang:scala-reflect" -> scalaVersion,
-    "com.typesafe.play::play-json" -> "2.10.4"
+    "com.typesafe.play::play-json" -> "2.10.4+"
   )
 
-  val nameMap = Map.from(ivyVersions.map { case (k, v) =>
+  lazy val nameMap = Map.from(ivyVersions.map { case (k, v) =>
     val kSplit = k.split(':')
     kSplit.last -> (k, v)
   })
@@ -79,32 +66,22 @@ trait CommonScalaModule
     with ScalafmtModule {
   override def scalaVersion = ivys.scalaVersion
 
-  def noWarnUnused = Seq(
-    "-Wconf:cat=unused:silent"
-  )
-
-  def noWarn = Seq(
-//    "-Wconf::s",
-  )
-
   override def scalacOptions = Seq(
     // checks
     "-deprecation",
     "-feature",
     "-Xcheckinit",
     // warnings
-    "-Wunused",
+    // "-Wunused",
     "-Xlint:adapted-args",
     "-Wconf:cat=unused&msg=parameter .* in .* never used:silent",
     "-Wconf:src=dependencies/.*:silent"
   )
 }
 
-// For modules not support mill yet, need to have a ScalaModule depend on our own repositories.
 trait ChiselModule extends CommonScalaModule {
   override def ivyDeps = super.ivyDeps() ++ Agg(
-    dep("chisel"),
-    dep("scala-reflect")
+    dep("chisel")
   )
 
   override def scalacPluginIvyDeps = Agg(
@@ -126,9 +103,7 @@ trait InnerChiselTestModule
     extends CommonScalaModule
     with TestModule.ScalaTest {
   override def ivyDeps = super.ivyDeps() ++ Agg(
-    dep("chiseltest"),//.excludeName("chisel", "chisel-plugin", "scalatest"),
-    dep("scalatest"),
-    dep("scalacheck")
+    dep("chiseltest")
   )
 }