diff --git a/app/changelogs/v3.1.9/v3.1.9.md b/app/changelogs/v3.1.9/v3.1.9.md
index cc97ea010..830071902 100644
--- a/app/changelogs/v3.1.9/v3.1.9.md
+++ b/app/changelogs/v3.1.9/v3.1.9.md
@@ -1,6 +1,6 @@
 ## Overview
 
-This version improves many details and fixes some defects. It is recommended to upgrade.
+This version improves many details and fixes some defects, it is recommended to upgrade.
 
 ## Changelogs