diff --git a/build.sbt b/build.sbt
index ff3ca96897a..2313f634fd9 100644
--- a/build.sbt
+++ b/build.sbt
@@ -5,12 +5,12 @@ import scala.sys.process._
 
 enablePlugins(PackPlugin)
 
-val chiselVersion = "3.5.1"
+val chiselVersion = "3.5.2"
 
 lazy val commonSettings = Seq(
   organization := "edu.berkeley.cs",
   version      := "1.2-SNAPSHOT",
-  scalaVersion := "2.12.10",
+  scalaVersion := "2.12.15",
   parallelExecution in Global := false,
   traceLevel   := 15,
   scalacOptions ++= Seq("-deprecation","-unchecked","-Xsource:2.11"),
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 6fb426e3ff2..3a4c489865b 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -16,6 +16,6 @@ addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.6.1")
 
 addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.2.5" )
 
-addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.9.21")
+addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.9.34")
 
 addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.15.0")
diff --git a/src/main/scala/rocket/ScratchpadSlavePort.scala b/src/main/scala/rocket/ScratchpadSlavePort.scala
index 753c95a59bf..63f37b3254e 100644
--- a/src/main/scala/rocket/ScratchpadSlavePort.scala
+++ b/src/main/scala/rocket/ScratchpadSlavePort.scala
@@ -11,7 +11,7 @@ import freechips.rocketchip.util._
 
 /* This adapter converts between diplomatic TileLink and non-diplomatic HellaCacheIO */
 class ScratchpadSlavePort(address: Seq[AddressSet], coreDataBytes: Int, usingAtomics: Boolean)(implicit p: Parameters) extends LazyModule {
-  def this(address: AddressSet, coreDataBytes: Int, usingAtomics: Boolean)(implicit p: Parameters) {
+  def this(address: AddressSet, coreDataBytes: Int, usingAtomics: Boolean)(implicit p: Parameters) = {
     this(Seq(address), coreDataBytes, usingAtomics)
   }