diff --git a/modules/core/src/main/scala/org/scalasteward/core/buildtool/mill/MillAlg.scala b/modules/core/src/main/scala/org/scalasteward/core/buildtool/mill/MillAlg.scala
index 763b960e8b..842dbde79e 100644
--- a/modules/core/src/main/scala/org/scalasteward/core/buildtool/mill/MillAlg.scala
+++ b/modules/core/src/main/scala/org/scalasteward/core/buildtool/mill/MillAlg.scala
@@ -39,7 +39,7 @@ final class MillAlg[F[_]](defaultResolvers: List[Resolver])(implicit
     workspaceAlg.buildRootDir(buildRoot).flatMap(findBuildFile).map(_.nonEmpty)
 
   private def findBuildFile(buildRootDir: File): F[Option[File]] =
-    List("build.sc", "build.mill", "build.mill.scala")
+    List("build.mill", "build.mill.scala", "build.sc")
       .map(buildRootDir / _)
       .findM(fileAlg.isRegularFile)
 
@@ -90,11 +90,23 @@ final class MillAlg[F[_]](defaultResolvers: List[Resolver])(implicit
   override protected val scalafixIssue: Option[String] =
     Some("https://github.com/scala-steward-org/scala-steward/issues/2838")
 
-  private def getMillVersion(buildRootDir: File): F[Option[Version]] =
-    List(
-      buildRootDir / s".$millVersionName",
-      buildRootDir / ".config" / millVersionName
-    ).collectFirstSomeM(fileAlg.readFile).map(_.flatMap(parser.parseMillVersion))
+  private def getMillVersion(buildRootDir: File): F[Option[Version]] = {
+    val fromConfigFile =
+      List(
+        buildRootDir / s".$millVersionName",
+        buildRootDir / ".config" / millVersionName
+      ).collectFirstSomeM(fileAlg.readFile(_).map(_.flatMap(parser.parseMillVersion)))
+    val fromBuildFile = List(
+      buildRootDir / "build.mill",
+      buildRootDir / "build.mill.scala",
+      buildRootDir / "build.sc"
+    ).collectFirstSomeM(fileAlg.readFile(_).map(_.flatMap(parser.parseBuildFileMillVersion)))
+
+    fromBuildFile.flatMap {
+      case None => fromConfigFile
+      case some => F.pure(some)
+    }
+  }
 
   private def getMillPluginDeps(
       millVersion: Version,
diff --git a/modules/core/src/main/scala/org/scalasteward/core/buildtool/mill/parser.scala b/modules/core/src/main/scala/org/scalasteward/core/buildtool/mill/parser.scala
index beb1fc9273..d2c6eefc29 100644
--- a/modules/core/src/main/scala/org/scalasteward/core/buildtool/mill/parser.scala
+++ b/modules/core/src/main/scala/org/scalasteward/core/buildtool/mill/parser.scala
@@ -46,6 +46,12 @@ object parser {
   def parseMillVersion(s: String): Option[Version] =
     Option(s.trim).filter(_.nonEmpty).map(Version.apply)
 
+  private val millVersionRegex = """\s*\/\/\|\s*mill-version:\s*['"]?(.+?)['"]?\s*""".r
+  def parseBuildFileMillVersion(s: String): Option[Version] =
+    s.linesIterator.collectFirst { case millVersionRegex(version) =>
+      Version(version)
+    }
+
   /** Used to correctly format the Mill plugin artifacts will when included look like:
     *   - import $ivy.`com.goyeau::mill-scalafix::0.2.10`
     *
diff --git a/modules/core/src/test/scala/org/scalasteward/core/buildtool/BuildToolDispatcherTest.scala b/modules/core/src/test/scala/org/scalasteward/core/buildtool/BuildToolDispatcherTest.scala
index d89d9e5e90..0700953426 100644
--- a/modules/core/src/test/scala/org/scalasteward/core/buildtool/BuildToolDispatcherTest.scala
+++ b/modules/core/src/test/scala/org/scalasteward/core/buildtool/BuildToolDispatcherTest.scala
@@ -43,16 +43,16 @@ class BuildToolDispatcherTest extends FunSuite {
     val expectedState = initial.copy(trace =
       Cmd("test", "-f", s"$repoDir/gradle/libs.versions.toml") +:
         Cmd("test", "-f", s"$repoDir/pom.xml") +:
-        Cmd("test", "-f", s"$repoDir/build.sc") +:
         Cmd("test", "-f", s"$repoDir/build.mill") +:
         Cmd("test", "-f", s"$repoDir/build.mill.scala") +:
+        Cmd("test", "-f", s"$repoDir/build.sc") +:
         Cmd("test", "-f", s"$repoDir/build.sbt") +:
         allGreps ++:
         Cmd("test", "-f", s"$repoDir/mvn-build/gradle/libs.versions.toml") +:
         Cmd("test", "-f", s"$repoDir/mvn-build/pom.xml") +:
-        Cmd("test", "-f", s"$repoDir/mvn-build/build.sc") +:
         Cmd("test", "-f", s"$repoDir/mvn-build/build.mill") +:
         Cmd("test", "-f", s"$repoDir/mvn-build/build.mill.scala") +:
+        Cmd("test", "-f", s"$repoDir/mvn-build/build.sc") +:
         Cmd("test", "-f", s"$repoDir/mvn-build/build.sbt") +:
         allGreps ++:
         Log("Get dependencies in . from sbt") +:
diff --git a/modules/core/src/test/scala/org/scalasteward/core/buildtool/mill/MillAlgTest.scala b/modules/core/src/test/scala/org/scalasteward/core/buildtool/mill/MillAlgTest.scala
index 1462879fbf..dbf6997961 100644
--- a/modules/core/src/test/scala/org/scalasteward/core/buildtool/mill/MillAlgTest.scala
+++ b/modules/core/src/test/scala/org/scalasteward/core/buildtool/mill/MillAlgTest.scala
@@ -22,6 +22,9 @@ class MillAlgTest extends FunSuite {
     val state = millAlg.getDependencies(buildRoot).runS(initial).unsafeRunSync()
     val expected = initial.copy(
       trace = Vector(
+        Cmd("read", s"$buildRootDir/build.mill"),
+        Cmd("read", s"$buildRootDir/build.mill.scala"),
+        Cmd("read", s"$buildRootDir/build.sc"),
         Cmd("read", s"$buildRootDir/.mill-version"),
         Cmd("read", s"$buildRootDir/.config/mill-version"),
         Cmd("write", predef),
@@ -53,8 +56,13 @@ class MillAlgTest extends FunSuite {
     val state = millAlg.getDependencies(buildRoot).runS(initial).unsafeRunSync()
     val expected = initial.copy(
       trace = Vector(
+        Cmd("read", s"$buildRootDir/build.mill"),
+        Cmd("read", s"$buildRootDir/build.mill.scala"),
+        Cmd("read", s"$buildRootDir/build.sc"),
         Cmd("read", s"$buildRootDir/.mill-version"),
         millCmd,
+        Cmd("test", "-f", s"$buildRootDir/build.mill"),
+        Cmd("test", "-f", s"$buildRootDir/build.mill.scala"),
         Cmd("test", "-f", s"$buildRootDir/build.sc"),
         Cmd("read", s"$buildRootDir/build.sc")
       )
@@ -84,8 +92,13 @@ class MillAlgTest extends FunSuite {
     val state = millAlg.getDependencies(buildRoot).runS(initial).unsafeRunSync()
     val expected = initial.copy(
       trace = Vector(
+        Cmd("read", s"$buildRootDir/build.mill"),
+        Cmd("read", s"$buildRootDir/build.mill.scala"),
+        Cmd("read", s"$buildRootDir/build.sc"),
         Cmd("read", s"$buildRootDir/.mill-version"),
         millCmd,
+        Cmd("test", "-f", s"$buildRootDir/build.mill"),
+        Cmd("test", "-f", s"$buildRootDir/build.mill.scala"),
         Cmd("test", "-f", s"$buildRootDir/build.sc"),
         Cmd("read", s"$buildRootDir/build.sc")
       )
@@ -93,6 +106,37 @@ class MillAlgTest extends FunSuite {
     assertEquals(state, expected)
   }
 
+  test("getDependencies, 1 <= version") {
+    val repo = Repo("mill-alg", "test-3")
+    val buildRoot = BuildRoot(repo, ".")
+    val buildRootDir = workspaceAlg.buildRootDir(buildRoot).unsafeRunSync()
+    val millCmd = Cmd.execSandboxed(
+      buildRootDir,
+      "mill",
+      "--no-server",
+      "--ticker",
+      "false",
+      "--import",
+      s"ivy:org.scala-steward::${BuildInfo.millPluginArtifactName}::${BuildInfo.millPluginVersion}",
+      "show",
+      extractDeps
+    )
+    val initial = MockState.empty
+      .copy(commandOutputs = Map(millCmd -> Right(List("""{"modules":[]}"""))))
+      .addFiles(buildRootDir / "build.mill" -> "//| mill-version: 1.0.6")
+      .unsafeRunSync()
+    val state = millAlg.getDependencies(buildRoot).runS(initial).unsafeRunSync()
+    val expected = initial.copy(
+      trace = Vector(
+        Cmd("read", s"$buildRootDir/build.mill"),
+        millCmd,
+        Cmd("test", "-f", s"$buildRootDir/build.mill"),
+        Cmd("read", s"$buildRootDir/build.mill")
+      )
+    )
+    assertEquals(state, expected)
+  }
+
   test("predef-content") {
     assert(MillAlg.content(None).contains("_mill$MILL_BIN_PLATFORM"))
     assert(MillAlg.content(Some(Version("0.6.1"))).contains("_mill0.6"))
diff --git a/modules/core/src/test/scala/org/scalasteward/core/buildtool/mill/MillVersionParserTest.scala b/modules/core/src/test/scala/org/scalasteward/core/buildtool/mill/MillVersionParserTest.scala
index d8ff1df99b..67652ec655 100644
--- a/modules/core/src/test/scala/org/scalasteward/core/buildtool/mill/MillVersionParserTest.scala
+++ b/modules/core/src/test/scala/org/scalasteward/core/buildtool/mill/MillVersionParserTest.scala
@@ -19,4 +19,28 @@ class MillVersionParserTest extends FunSuite {
     val parsed = parser.parseMillVersion(versionFileContent).map(_.value)
     assertEquals(parsed, expected)
   }
+
+  test(s"parse version from build.mill file") {
+    val buildMillFileContent = """
+                                 |//| mill-version: 1.0.5
+                                 |""".stripMargin
+    val parsed = parser.parseBuildFileMillVersion(buildMillFileContent).map(_.value)
+    assertEquals(parsed, Some("1.0.5"))
+  }
+
+  test(s"parse quoted version from build.mill file") {
+    val buildMillFileContent = """
+                                 |//| mill-version: "1.0.5"
+                                 |""".stripMargin
+    val parsed = parser.parseBuildFileMillVersion(buildMillFileContent).map(_.value)
+    assertEquals(parsed, Some("1.0.5"))
+  }
+
+  test(s"parse single quoted version from build.mill file") {
+    val buildMillFileContent = """
+                                 |//| mill-version: '1.0.5'
+                                 |""".stripMargin
+    val parsed = parser.parseBuildFileMillVersion(buildMillFileContent).map(_.value)
+    assertEquals(parsed, Some("1.0.5"))
+  }
 }
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index 00fd3689ff..aff2f735ea 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -44,6 +44,6 @@ object Dependencies {
   val scalacheck = "org.scalacheck" %% "scalacheck" % "1.19.0"
   val scalaStewardMillPluginArtifactName = "scala-steward-mill-plugin"
   val scalaStewardMillPlugin =
-    "org.scala-steward" % s"${scalaStewardMillPluginArtifactName}_mill0.11_2.13" % "0.18.2"
+    "org.scala-steward" % s"${scalaStewardMillPluginArtifactName}_mill1_3" % "0.19.0"
   val tomlj = "org.tomlj" % "tomlj" % "1.1.1"
 }