diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index 91f1fd23..3a7deeb7 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -1,2 +1,5 @@
 # Scala Steward: Reformat with scalafmt 3.5.9
 e1d1b1e181abf55ca0d846d122ad757c17f1036c
+
+# Scala Steward: Reformat with scalafmt 3.8.6
+9ac3d32d5a2dc6b57dc0105723eab78956a552f8