diff --git a/manifest.yaml b/manifest.yaml
index 18cd182..2a1eb37 100644
--- a/manifest.yaml
+++ b/manifest.yaml
@@ -117,6 +117,13 @@ projects:
     path: ./52-COL.usfm
     categories:
       - bible-nt
+  - title: 1 Thessalonians
+    versification: ufw
+    identifier: 1th
+    sort: 53
+    path: ./53-1TH.usfm
+    categories:
+      - bible-nt
   - title: 2 Timothy
     versification: ufw
     identifier: 2ti