diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
new file mode 100644
index 0000000..0908d8e
--- /dev/null
+++ b/.git-blame-ignore-revs
@@ -0,0 +1,2 @@
+# Scala Steward: Reformat with scalafmt 3.8.5
+2c67030d3e8616c9d7408ef9494e77667f198710
diff --git a/.scalafmt.conf b/.scalafmt.conf
index c087ac7..605fbb4 100644
--- a/.scalafmt.conf
+++ b/.scalafmt.conf
@@ -1,4 +1,4 @@
-version = 3.8.3
+version = 3.8.5
 
 style = default
 
diff --git a/testkit/src/test/scala/org/typelevel/catapult/VariationTests.scala b/testkit/src/test/scala/org/typelevel/catapult/VariationTests.scala
index 8cf59c3..9d6aece 100644
--- a/testkit/src/test/scala/org/typelevel/catapult/VariationTests.scala
+++ b/testkit/src/test/scala/org/typelevel/catapult/VariationTests.scala
@@ -65,9 +65,8 @@ object VariationTests extends SimpleIOSuite {
           result <- received.get
           unchained = NonEmptyChain
             .fromChain(
-              result.map(event =>
-                (event.getOldValue.stringValue(), event.getNewValue.stringValue())
-              )
+              result
+                .map(event => (event.getOldValue.stringValue(), event.getNewValue.stringValue()))
             )
             .map(_.reduceLeft { case ((old1, new1), (old2, new2)) =>
               if (old2 == new1) (old1, new2) else throw new Exception("")