diff --git a/.jvmopts b/.jvmopts
index 26e6a558b..e24c9fe86 100644
--- a/.jvmopts
+++ b/.jvmopts
@@ -1,5 +1,5 @@
 -Xmx4g
--Xss2m
+-Xss4m
 -XX:MaxMetaspaceSize=1g
 -XX:ReservedCodeCacheSize=512m
 -XX:+UseParallelGC
diff --git a/build.sbt b/build.sbt
index 5992277f5..cd57a59cd 100644
--- a/build.sbt
+++ b/build.sbt
@@ -214,10 +214,10 @@ lazy val tzdb = crossProject(JVMPlatform, JSPlatform, NativePlatform)
   .settings(commonSettings)
   .settings(
     name        := "scala-java-time-tzdb",
-    includeTTBP := true
+    includeTTBP := true,
+    dbVersion   := TzdbPlugin.Version(tzdbVersion)
   )
   .jsSettings(
-    dbVersion := TzdbPlugin.Version(tzdbVersion),
     Compile / sourceGenerators += Def.task {
       val srcDirs        = (Compile / sourceManaged).value
       val destinationDir = (Compile / sourceManaged).value
@@ -225,7 +225,6 @@ lazy val tzdb = crossProject(JVMPlatform, JSPlatform, NativePlatform)
     }.taskValue
   )
   .nativeSettings(
-    dbVersion    := TzdbPlugin.Version(tzdbVersion),
     tzdbPlatform := TzdbPlugin.Platform.Native,
     Compile / sourceGenerators += Def.task {
       val srcDirs        = (Compile / sourceManaged).value
@@ -300,7 +299,8 @@ lazy val demo = crossProject(JSPlatform, JVMPlatform, NativePlatform)
     name           := "demo",
     publish / skip := true,
     Keys.`package` := file(""),
-    zonesFilter    := zonesFilterFn
+    zonesFilter    := zonesFilterFn,
+    dbVersion      := TzdbPlugin.Version(tzdbVersion)
   )
   .jsSettings(
     // scalaJSLinkerConfig ~= { _.withModuleKind(ModuleKind.ESModule) },
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 36ad003da..eb0ce4c96 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,5 +1,3 @@
-addSbtPlugin("com.47deg" % "sbt-microsites" % "1.3.4")
-
 val scalaJSVersion =
   Option(System.getenv("SCALAJS_VERSION")).getOrElse("1.10.1")
 
@@ -9,7 +7,7 @@ addSbtPlugin("org.scala-js" % "sbt-scalajs" % scalaJSVersion)
 
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.2.0")
 
-addSbtPlugin("io.github.cquiroz" % "sbt-tzdb" % "3.0.0")
+addSbtPlugin("io.github.cquiroz" % "sbt-tzdb" % "4.0.0")
 
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.6")