diff --git a/build-constraints.yaml b/build-constraints.yaml
index b84dc558..5eb43dd5 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4340,6 +4340,7 @@ packages:
 
     "Brandon Chinn <brandonchinn178@gmail.com> @brandonchinn178":
         - persistent-mtl
+        - fourmolu
 
     "Akshay Mankar <itsakshaymankar@gmail.com> @akshaymankar":
         - jsonpath