diff --git a/build.sc b/build.sc
index 2044868..2203116 100644
--- a/build.sc
+++ b/build.sc
@@ -11,7 +11,7 @@ import mill.bsp._
 object playground extends SbtModule with ScalafmtModule { m =>
   val useChisel3 = false
   override def millSourcePath = os.pwd / "src"
-  override def scalaVersion = if (useChisel3) "2.13.10" else "2.13.12"
+  override def scalaVersion = if (useChisel3) "2.13.10" else "2.13.14"
   override def scalacOptions = Seq(
     "-language:reflectiveCalls",
     "-deprecation",
@@ -23,11 +23,11 @@ object playground extends SbtModule with ScalafmtModule { m =>
   }
   override def ivyDeps = Agg(
     if (useChisel3) ivy"edu.berkeley.cs::chisel3:3.6.0" else
-    ivy"org.chipsalliance::chisel:6.2.0"
+    ivy"org.chipsalliance::chisel:6.4.0"
   )
   override def scalacPluginIvyDeps = Agg(
     if (useChisel3) ivy"edu.berkeley.cs:::chisel3-plugin:3.6.0" else
-    ivy"org.chipsalliance:::chisel-plugin:6.2.0"
+    ivy"org.chipsalliance:::chisel-plugin:6.4.0"
   )
   object test extends SbtModuleTests with TestModule.ScalaTest with ScalafmtModule {
     override def sources = T.sources {