diff --git a/ReleaseNotes/release_notes.md b/ReleaseNotes/release_notes.md
index 48c41cbf..f86840b1 100644
--- a/ReleaseNotes/release_notes.md
+++ b/ReleaseNotes/release_notes.md
@@ -14,6 +14,7 @@
 
   1. fix minor typos in `oftap.fitting.pdfbasic.py`
 
+
 # v1.9.9.8
 
 ## New features: