diff --git a/build-constraints.yaml b/build-constraints.yaml
index fd1fd98a..dcdfaf78 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2358,6 +2358,8 @@ packages:
         - stache
         - parser-combinators
         - modern-uri
+        - mmark
+        - mmark-ext
 
     "Thomas Bereknyei <tomberek@gmail.com>":
         []