diff --git a/manifest.yaml b/manifest.yaml
index aced115..d2ec816 100644
--- a/manifest.yaml
+++ b/manifest.yaml
@@ -33,6 +33,7 @@ dublin_core:
   relation:
     - 'th/ulb'
     - 'th/tn'
+    - 'th/tw'
   rights: 'CC BY-SA 4.0'
   source:
     -