diff --git a/windows/security/threat-protection/microsoft-defender-atp/api-release-notes.md b/windows/security/threat-protection/microsoft-defender-atp/api-release-notes.md
index 4a650a2e4d..5dd49affed 100644
--- a/windows/security/threat-protection/microsoft-defender-atp/api-release-notes.md
+++ b/windows/security/threat-protection/microsoft-defender-atp/api-release-notes.md
@@ -23,13 +23,16 @@ ms.technology: mde
 
 - test 1 
 
+<hr> 
 ## 2.2.3
 
 - test2
 - test3
 
+<hr> 
 ## 2.1.58
 
 - fix: test4
 - fix: test5
 - add: test6
+<hr> 
\ No newline at end of file