diff --git a/launcher-package/build.sbt b/launcher-package/build.sbt
index cceaebd16..af2e25f51 100755
--- a/launcher-package/build.sbt
+++ b/launcher-package/build.sbt
@@ -72,9 +72,11 @@ val exportRepoCsrDirectory = settingKey[File]("")
 
 val x86MacPlatform = "x86_64-apple-darwin"
 val x86LinuxPlatform = "x86_64-pc-linux"
+val aarch64LinuxPlatform = "aarch64-pc-linux"
 val x86WindowsPlatform = "x86_64-pc-win32"
 val x86MacImageName = s"sbtn-$x86MacPlatform"
 val x86LinuxImageName = s"sbtn-$x86LinuxPlatform"
+val aarch64LinuxImageName = s"sbtn-$aarch64LinuxPlatform"
 val x86WindowsImageName = s"sbtn-$x86WindowsPlatform.exe"
 
 organization in ThisBuild := "org.scala-sbt"
@@ -119,17 +121,19 @@ val root = (project in file(".")).
       file
     },
     // update sbt.sh at root
-    sbtnVersion := "1.7.0",
+    sbtnVersion := "1.8.1-M1",
     sbtnJarsBaseUrl := "https://github.com/sbt/sbtn-dist/releases/download",
     sbtnJarsMappings := {
       val baseUrl = sbtnJarsBaseUrl.value
       val v = sbtnVersion.value
       val macosImageTar = s"sbtn-$x86MacPlatform-$v.tar.gz"
-      val linuxImageTar = s"sbtn-$x86LinuxPlatform-$v.tar.gz"
+      val linuxX86ImageTar = s"sbtn-$x86LinuxPlatform-$v.tar.gz"
+      val linuxAarch64ImageTar = s"sbtn-$aarch64LinuxPlatform-$v.tar.gz"
       val windowsImageZip = s"sbtn-$x86WindowsPlatform-$v.zip"
       val t = target.value
       val macosTar = t / macosImageTar
-      val linuxTar = t / linuxImageTar
+      val linuxX86Tar = t / linuxX86ImageTar
+      val linuxAarch64Tar = t / linuxAarch64ImageTar
       val windowsZip = t / windowsImageZip
       import dispatch.classic._
       if(!macosTar.exists && !isWindows && sbtIncludeSbtn) {
@@ -142,16 +146,26 @@ val root = (project in file(".")).
          s"tar zxvf $macosTar --directory $platformDir".!
          IO.move(platformDir / "sbtn", t / x86MacImageName)
       }
-      if(!linuxTar.exists && !isWindows && sbtIncludeSbtn) {
-         IO.touch(linuxTar)
-         val writer = new java.io.BufferedOutputStream(new java.io.FileOutputStream(linuxTar))
-         try Http(url(s"$baseUrl/v$v/$linuxImageTar") >>> writer)
+      if(!linuxX86Tar.exists && !isWindows && sbtIncludeSbtn) {
+         IO.touch(linuxX86Tar)
+         val writer = new java.io.BufferedOutputStream(new java.io.FileOutputStream(linuxX86Tar))
+         try Http(url(s"$baseUrl/v$v/$linuxX86ImageTar") >>> writer)
          finally writer.close()
          val platformDir = t / x86LinuxPlatform
          IO.createDirectory(platformDir)
-         s"""tar zxvf $linuxTar --directory $platformDir""".!
+         s"""tar zxvf $linuxX86Tar --directory $platformDir""".!
          IO.move(platformDir / "sbtn", t / x86LinuxImageName)
       }
+      if(!linuxAarch64Tar.exists && !isWindows && sbtIncludeSbtn) {
+         IO.touch(linuxAarch64Tar)
+         val writer = new java.io.BufferedOutputStream(new java.io.FileOutputStream(linuxAarch64Tar))
+         try Http(url(s"$baseUrl/v$v/$linuxAarch64ImageTar") >>> writer)
+         finally writer.close()
+         val platformDir = t / aarch64LinuxPlatform
+         IO.createDirectory(platformDir)
+         s"""tar zxvf $linuxAarch64Tar --directory $platformDir""".!
+         IO.move(platformDir / "sbtn", t / aarch64LinuxImageName)
+      }
       if(!windowsZip.exists && sbtIncludeSbtn) {
          IO.touch(windowsZip)
          val writer = new java.io.BufferedOutputStream(new java.io.FileOutputStream(windowsZip))
@@ -166,6 +180,7 @@ val root = (project in file(".")).
       else
         Seq(t / x86MacImageName -> s"bin/$x86MacImageName",
           t / x86LinuxImageName -> s"bin/$x86LinuxImageName",
+          t / aarch64LinuxImageName -> s"bin/$aarch64LinuxImageName",
           t / x86WindowsImageName -> s"bin/$x86WindowsImageName")
     },
 
@@ -222,7 +237,7 @@ val root = (project in file(".")).
       val orig = (linuxPackageMappings in Rpm).value
       val nativeMappings = sbtnJarsMappings.value
       orig.map(o => o.copy(mappings = o.mappings.toList filterNot {
-        case (x, p) => p.contains("sbtn-x86_64")
+        case (x, p) => p.contains("sbtn-x86_64") || p.contains("sbtn-aarch64")
       }))
     },
     rpmVendor := "lightbend",
diff --git a/main/src/main/scala/sbt/internal/InstallSbtn.scala b/main/src/main/scala/sbt/internal/InstallSbtn.scala
index b6a1a2682..e5edd4b6f 100644
--- a/main/src/main/scala/sbt/internal/InstallSbtn.scala
+++ b/main/src/main/scala/sbt/internal/InstallSbtn.scala
@@ -64,7 +64,11 @@ private[sbt] object InstallSbtn {
       if (Properties.isWin) "pc-win32.exe"
       else if (Properties.isLinux) "pc-linux"
       else "apple-darwin"
-    val sbtnName = s"sbt/bin/sbtn-x86_64-$bin"
+    val isArmArchitecture: Boolean = sys.props
+      .getOrElse("os.arch", "")
+      .toLowerCase(java.util.Locale.ROOT) == "aarch64"
+    val arch = if (Properties.isLinux && isArmArchitecture) "aarch64" else "x86_64"
+    val sbtnName = s"sbt/bin/sbtn-$arch-$bin"
     val fis = new FileInputStream(sbtZip.toFile)
     val zipInputStream = new ZipInputStream(fis)
     var foundBinary = false
diff --git a/main/src/test/scala/sbt/internal/InstallSbtnSpec.scala b/main/src/test/scala/sbt/internal/InstallSbtnSpec.scala
index 392cc1fc9..8418c6ed3 100644
--- a/main/src/test/scala/sbt/internal/InstallSbtnSpec.scala
+++ b/main/src/test/scala/sbt/internal/InstallSbtnSpec.scala
@@ -37,7 +37,7 @@ class InstallSbtnSpec extends AnyFlatSpec {
   "InstallSbtn" should "extract native sbtn" ignore
     withTemp(".zip") { tmp =>
       withTemp(".exe") { sbtn =>
-        InstallSbtn.extractSbtn(term, "1.4.1", tmp, sbtn)
+        InstallSbtn.extractSbtn(term, "1.8.1-M1", tmp, sbtn)
         val tmpDir = Files.createTempDirectory("sbtn-test").toRealPath()
         Files.createDirectories(tmpDir.resolve("project"))
         val foo = tmpDir.resolve("foo")
@@ -46,7 +46,7 @@ class InstallSbtnSpec extends AnyFlatSpec {
         IO.write(tmpDir.resolve("build.sbt").toFile, build)
         IO.write(
           tmpDir.resolve("project").resolve("build.properties").toFile,
-          "sbt.version=1.4.1"
+          "sbt.version=1.8.0"
         )
         try {
           val proc =
diff --git a/sbt b/sbt
index 8d754c6fd..142e285b9 100755
--- a/sbt
+++ b/sbt
@@ -171,6 +171,7 @@ acquire_sbtn () {
   local target="$p/sbtn"
   local archive_target=
   local url=
+  local arch = "x86_64"
   if [[ "$OSTYPE" == "linux-gnu"* ]]; then
     arch=$(uname -m)
     if [[ "$arch" == "aarch64" ]] || [[ "$arch" == "x86_64" ]]; then