diff --git a/build-constraints.yaml b/build-constraints.yaml
index d782f3d8..347f3992 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1895,6 +1895,9 @@ packages:
     "Jason Shipman <jasonpshipman@gmail.com> @jship":
         # on behalf of Boris Sukholitko @bosu
         - pure-cdb
+        
+    "Justus Adam <dev@justus.science> @JustusAdam":
+        - mustache
 
     # If you stop mainaining a package you can move it here.
     # It will then be disabled if it starts causing problems.