diff --git a/build-constraints.yaml b/build-constraints.yaml
index b40c00ff..9dc63fbc 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2547,7 +2547,7 @@ packages:
         - terminal-progress-bar < 0.1.0 # Re-enable tests when lifting this
 
         # https://github.com/fpco/stackage/issues/1863
-        - newtype-generics < 0.4
+        - newtype-generics < 0.4 # May need to disable test suite when lifting this https://github.com/jcristovao/newtype-generics/issues/7
         - MemoTrie < 0.6.5
 
         # https://github.com/fpco/stackage/issues/1876