diff --git a/build.sbt b/build.sbt
index a6b4a6f91..311c9435e 100644
--- a/build.sbt
+++ b/build.sbt
@@ -14,7 +14,6 @@ ThisBuild / version := {
   val v = "2.0.0-RC9-bin-SNAPSHOT"
   nightlyVersion.getOrElse(v)
 }
-ThisBuild / Utils.version2_13 := "2.0.0-SNAPSHOT"
 ThisBuild / versionScheme := Some("early-semver")
 ThisBuild / scalafmtOnCompile := !(Global / insideCI).value
 ThisBuild / Test / scalafmtOnCompile := !(Global / insideCI).value
@@ -798,10 +797,6 @@ lazy val sbtProj = (project in file("sbt-app"))
     testedBaseSettings,
     name := "sbt",
     normalizedName := "sbt",
-    version := {
-      if (scalaVersion.value == baseScalaVersion) version.value
-      else Utils.version2_13.value
-    },
     crossPaths := false,
     crossTarget := { target.value / scalaVersion.value },
     javaOptions ++= Seq("-Xdebug", "-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005"),
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index 7036058fc..b3c3735dc 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -3,7 +3,6 @@ import Keys.*
 
 object Dependencies {
   // WARNING: Please Scala update versions in PluginCross.scala too
-  val scala213 = "2.13.16"
   val scala3 = "3.8.3"
   val scala212 = "2.12.21"
   val baseScalaVersion = scala3
diff --git a/project/Utils.scala b/project/Utils.scala
index 6c7cb9e3a..9c7113268 100644
--- a/project/Utils.scala
+++ b/project/Utils.scala
@@ -6,7 +6,6 @@ import scalafix.sbt.ScalafixPlugin.autoImport.scalafix
 import sbt.internal.inc.Analysis
 
 object Utils {
-  val version2_13 = settingKey[String]("version number")
   val ExclusiveTest: Tags.Tag = Tags.Tag("exclusive-test")
 
   val componentID: SettingKey[Option[String]] = settingKey[Option[String]]("")