diff --git a/build-constraints.yaml b/build-constraints.yaml
index ed2cf609..9dc7ba0c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -564,6 +564,8 @@ packages:
         - list-fusion-probe
         - haskell-spacegoo
         - tasty-expected-failure
+        - RepLib
+        - unbound
 
     "Aditya Bhargava <adit@adit.io":
         - HandsomeSoup