diff --git a/build.sbt b/build.sbt
index 8a1a8b60..9ce7d00c 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,9 +1,6 @@
 // See LICENSE for license details.
 
-val defaultVersions = Map(
-  "chisel3" -> "3.5.5",
-  "chisel-iotesters" -> "2.5.5"
-)
+val defaultVersions = Map("chisel3" -> "3.6.0")
 
 organization := "edu.berkeley.cs"
 version := "0.4-SNAPSHOT"
@@ -13,7 +10,7 @@ scalacOptions := Seq("-deprecation", "-feature", "-language:reflectiveCalls")
 Test / scalacOptions ++= Seq("-language:reflectiveCalls")
 fork := true
 mainClass := Some("barstools.macros.MacroCompiler")
-libraryDependencies ++= Seq("chisel3","chisel-iotesters").map {
+libraryDependencies ++= Seq("chisel3").map {
   dep: String => "edu.berkeley.cs" %% dep % sys.props.getOrElse(dep + "Version", defaultVersions(dep))
 }
 libraryDependencies ++= Seq(
diff --git a/src/main/scala/barstools/iocell/chisel/IOCell.scala b/src/main/scala/barstools/iocell/chisel/IOCell.scala
index b90e43ac..457fa12b 100644
--- a/src/main/scala/barstools/iocell/chisel/IOCell.scala
+++ b/src/main/scala/barstools/iocell/chisel/IOCell.scala
@@ -153,7 +153,7 @@ object IOCell {
     * @param name An optional name or name prefix to use for naming IO cells
     * @return A Seq of all generated IO cell instances
     */
-  val toSyncReset:  (Reset) => Bool = _.asBool()
+  val toSyncReset:  (Reset) => Bool = _.asBool
   val toAsyncReset: (Reset) => AsyncReset = _.asAsyncReset
   def generateFromSignal[T <: Data, R <: Reset](
     coreSignal:        T,
diff --git a/src/main/scala/barstools/tapeout/transforms/utils/ProgrammaticBundle.scala b/src/main/scala/barstools/tapeout/transforms/utils/ProgrammaticBundle.scala
index 66200e61..ef98b294 100644
--- a/src/main/scala/barstools/tapeout/transforms/utils/ProgrammaticBundle.scala
+++ b/src/main/scala/barstools/tapeout/transforms/utils/ProgrammaticBundle.scala
@@ -8,7 +8,6 @@ class CustomBundle[T <: Data](elts: (String, T)*) extends Record {
   val elements = ListMap(elts.map { case (field, elt) => field -> chiselTypeOf(elt) }: _*)
   def apply(elt: String): T = elements(elt)
   def apply(elt: Int):    T = elements(elt.toString)
-  override def cloneType = (new CustomBundle(elements.toList: _*)).asInstanceOf[this.type]
 }
 
 class CustomIndexedBundle[T <: Data](elts: (Int, T)*) extends Record {
@@ -17,7 +16,6 @@ class CustomIndexedBundle[T <: Data](elts: (Int, T)*) extends Record {
   // TODO: Make an equivalent to the below work publicly (or only on subclasses?)
   def indexedElements = ListMap(elts.map { case (field, elt) => field -> chiselTypeOf(elt) }: _*)
   def apply(elt: Int): T = elements(elt.toString)
-  override def cloneType = (new CustomIndexedBundle(indexedElements.toList: _*)).asInstanceOf[this.type]
 }
 
 object CustomIndexedBundle {