diff --git a/build-constraints.yaml b/build-constraints.yaml
index 3461e5c4..6c375708 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2564,6 +2564,9 @@ packages:
         - servant-docs < 0.9
         - servant-js < 0.9
         - language-puppet < 1.3.2
+
+        # https://github.com/fpco/stackage/issues/1920
+        - hw-prim < 0.1.0.1
 # end of packages