diff --git a/build-constraints.yaml b/build-constraints.yaml
index e934a789..63c84ca1 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1929,9 +1929,6 @@ packages:
         # https://github.com/fpco/stackage/issues/1168
         - QuickCheck < 2.8.2
 
-        # https://github.com/isomorphism/these/issues/44
-        - quickcheck-instances < 0.3.12
-
         # https://github.com/fpco/stackage/issues/1146
         - transformers-compat < 0.5