diff --git a/l18n b/l18n
index 98087df..9ff08dd 160000
--- a/l18n
+++ b/l18n
@@ -1 +1 @@
-Subproject commit 98087dfab786b68b627af8f52520cfb7ade78885
+Subproject commit 9ff08dd105734b9c57f597b38e26b18e0d3a3e1b
diff --git a/src/MDSourceTypeSet.php b/src/MDSourceTypeSet.php
index 1107137..166f2b5 100644
--- a/src/MDSourceTypeSet.php
+++ b/src/MDSourceTypeSet.php
@@ -17,6 +17,8 @@ final class MDSourceTypeSet extends MDValueSet {
         'book',
         'phdthesis',
         'electronical',
+        'patent',
+        'unpublished',
         'misc',
     ];