diff --git a/manifest.yaml b/manifest.yaml
index bdbc621..f147ef2 100644
--- a/manifest.yaml
+++ b/manifest.yaml
@@ -8,12 +8,12 @@ dublin_core:
     of the entire Bible.
   format: text/markdown
   identifier: obs
-  issued: '2017-09-05'
+  issued: '2023-02-28'
   language:
     direction: 'ltr'
     identifier: 'zh'
     title: '中文'
-  modified: '2017-09-05'
+  modified: '2023-02-28'
   publisher: unfoldingWord
   relation:
     - 'zh/tw'