diff --git a/build-constraints.yaml b/build-constraints.yaml
index 3b94f851..d3a09725 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3940,6 +3940,7 @@ packages:
         - hex-text
         - invert
         - loc
+        - memfd
         - partial-semigroup
         - path-text-utf8
         - stripe-concepts