diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index 0fbaab8e..7a708249 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -4,3 +4,6 @@
 4e224a6ff898ddf989d9a69b95ea6349f605ec90
 # Scala Steward: Reformat with scalafmt 3.8.2
 c980f5875ba856d02ca8da6162f54f44793dcd16
+
+# Scala Steward: Reformat with scalafmt 3.8.4
+91ba17e0dd3a2f4a64013132ea2aba11622c8eab