diff --git a/build-constraints.yaml b/build-constraints.yaml
index aded36c5..34c6c0ef 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3273,6 +3273,7 @@ packages:
     "Pavel Yakovlev <pavel@yakovlev.me> @zmactep":
         - hasbolt
         - uniprot-kb
+        - mmtf
 
     "Christopher A. Gorski <cgorski@cgorski.org> @cgorski":
         - general-games