diff --git a/build-constraints.yaml b/build-constraints.yaml
index 7e135510..989d6590 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2287,6 +2287,9 @@ packages:
         # https://github.com/fpco/stackage/issues/1597
         - tagsoup < 0.14
 
+        # https:/github.com/fpco/stackage/issues/1645
+        - semigroups < 0.18.2
+
 # end of packages