diff --git a/build.sc b/build.sc
index e40ab5cb8fc..d83d9a7a7e0 100755
--- a/build.sc
+++ b/build.sc
@@ -161,7 +161,7 @@ trait MillApiModule
 //  def compileIvyDeps = Agg(Deps.acyclic)
 //  def scalacOptions = Seq("-P:acyclic:force")
 //  def scalacPluginIvyDeps = Agg(Deps.acyclic)
-  override def mimaPreviousVersions: T[Seq[String]] = (Settings.mimaBaseVersions ++ Seq(millLastTag())).distinct
+  override def mimaPreviousVersions: T[Seq[String]] = Settings.mimaBaseVersions
 }
 
 trait MillModule extends MillApiModule { outer =>
diff --git a/ci/mill-bootstrap.patch b/ci/mill-bootstrap.patch
index 68122d140e0..87f4fa98d8a 100644
--- a/ci/mill-bootstrap.patch
+++ b/ci/mill-bootstrap.patch
@@ -31,7 +31,7 @@ index c93275a2..96ff97cf 100755
  //  def compileIvyDeps = Agg(Deps.acyclic)
  //  def scalacOptions = Seq("-P:acyclic:force")
  //  def scalacPluginIvyDeps = Agg(Deps.acyclic)
--  override def mimaPreviousVersions: T[Seq[String]] = (Settings.mimaBaseVersions ++ Seq(millLastTag())).distinct
+-  override def mimaPreviousVersions: T[Seq[String]] = Settings.mimaBaseVersions
  }
  
  trait MillModule extends MillApiModule { outer =>