diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
new file mode 100644
index 0000000..f47ab19
--- /dev/null
+++ b/.git-blame-ignore-revs
@@ -0,0 +1,2 @@
+# Scala Steward: Reformat with scalafmt 3.8.3
+ec63daed4dbd62c2d3a61cc85737db67d23ca96c
diff --git a/.scalafmt.conf b/.scalafmt.conf
index 0173188..34579a8 100644
--- a/.scalafmt.conf
+++ b/.scalafmt.conf
@@ -1,4 +1,4 @@
-version = "3.5.9"
+version = "3.8.3"
 runner.dialect = scala3
 rewrite.scala3.insertEndMarkerMinLines = 50
 maxColumn = 140
diff --git a/plugin/src/main/scala-3/BetterToStringPlugin.scala b/plugin/src/main/scala-3/BetterToStringPlugin.scala
index e90a5fc..72858e6 100644
--- a/plugin/src/main/scala-3/BetterToStringPlugin.scala
+++ b/plugin/src/main/scala-3/BetterToStringPlugin.scala
@@ -38,7 +38,11 @@ final class BetterToStringPluginPhase extends PluginPhase:
   override val phaseName: String = "better-tostring-phase"
   override val runsAfter: Set[String] = Set(org.polyvariant.AfterPhase.name)
 
-  override def transformTemplate(t: Template)(using ctx: Context): Tree =
+  override def transformTemplate(
+    t: Template
+  )(
+    using ctx: Context
+  ): Tree =
     val clazz = ctx.owner.asClass
 
     val ownerOwner = ctx.owner.owner
diff --git a/plugin/src/main/scala-3/Scala3CompilerApi.scala b/plugin/src/main/scala-3/Scala3CompilerApi.scala
index 86d18a2..c999584 100644
--- a/plugin/src/main/scala-3/Scala3CompilerApi.scala
+++ b/plugin/src/main/scala-3/Scala3CompilerApi.scala
@@ -46,7 +46,9 @@ object Scala3CompilerApi:
   final case class ClassContext(t: Template, clazz: ClassSymbol):
     def mapTemplate(f: Template => Template): ClassContext = copy(t = f(t))
 
-  def instance(using Context): Scala3CompilerApi = new Scala3CompilerApi:
+  def instance(
+    using Context
+  ): Scala3CompilerApi = new Scala3CompilerApi:
 
     def params(clazz: Clazz): List[Param] =
       clazz.t.body.collect {