diff --git a/.scalafmt.conf b/.scalafmt.conf
index 3f7894b..e1370f8 100644
--- a/.scalafmt.conf
+++ b/.scalafmt.conf
@@ -1,4 +1,4 @@
-version = 3.0.8
+version = 3.4.3
 maxColumn = 120
 assumeStandardLibraryStripMargin = true
 
diff --git a/project/Boilerplate.scala b/project/Boilerplate.scala
index 9747ca2..a285932 100644
--- a/project/Boilerplate.scala
+++ b/project/Boilerplate.scala
@@ -95,7 +95,9 @@ object Boilerplate {
       |import _root_.mess.Fmt
       |
       |private[codec] trait TupleEncoder {
-        -  implicit def encodeTuple$arity[${`A..N`}](implicit ${`a:F[A]..n:F[N]`("Encoder")}): Encoder.AsArray[${`(A..N)`}] =
+        -  implicit def encodeTuple$arity[${`A..N`}](implicit ${`a:F[A]..n:F[N]`(
+          "Encoder"
+        )}): Encoder.AsArray[${`(A..N)`}] =
         -    $arg => Fmt.MArray(Vector($expr))
       |}
       """