diff --git a/build-constraints.yaml b/build-constraints.yaml
index 3c386345..e9ed02fe 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -52,6 +52,7 @@ packages:
 
     "Theodore Lief Gannon <tanuki@gmail.com> @tejon":
         - aeson-yak
+        - safe-foldable
 
     "Jaro Reinders <jaro.reinders@gmail.com> @Noughtmare":
         - haskell-lsp-client < 0 # GHC 8.4 via haskell-lsp