diff --git a/manifest.yaml b/manifest.yaml
index 29c0ab7..5848061 100644
--- a/manifest.yaml
+++ b/manifest.yaml
@@ -8,15 +8,16 @@ dublin_core:
   identifier: 'tw'
   issued: '2021-01-07'
   language:
-    identifier: 'ar'
-    title: 'Arabic'
+    identifier: 'arb'
+    title: 'Arabic, Standard'
     direction: 'rtl'
   modified: '2021-01-07'
   publisher: 'Wycliffe Associates'
   relation:
-    - 'ar/ulb'
-    - 'ar/tq'
-    - 'ar/tn'
+    - 'arb/nav'
+    - 'arb/avd'
+    - 'arb/tq'
+    - 'arb/tn'
   rights: 'CC BY-SA 4.0'
   source:
     -