diff --git a/build-constraints.yaml b/build-constraints.yaml
index 434392a0..4f0dfba6 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4779,7 +4779,7 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/4781
         - generic-deriving < 1.13
 
-        # https://github.com/commercialhaskell/stackage/issues/4646
+        # See https://github.com/commercialhaskell/stackage/issues/4646#issuecomment-525517773
         - singletons < 2.6
         - eliminators < 0.6
         - th-desugar < 1.10