diff --git a/build-constraints.yaml b/build-constraints.yaml
index f817b6bd..1cc71b65 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1679,7 +1679,7 @@ packages:
         - follow-file < 0 # GHC 8.4 via hinotify
         - HSet
         - markup < 0 # GHC 8.4 via clay
-        - monad-control-aligned < 0 # GHC 8.4 via transformers-compat-0.6.0.6
+        - monad-control-aligned # 0 # GHC 8.4 via transformers-compat-0.6.0.6
         - monadoid < 0 # build failure with GHC 8.4
         - n-tuple < 0 # build failure with GHC 8.4 https://github.com/athanclark/n-tuple/issues/1
         - path-extra
@@ -3385,7 +3385,7 @@ packages:
         - exceptions < 0.9
 
         # https://github.com/fpco/stackage/issues/3445
-        - wai-transformers < 0.1
+        # wai-transformers < 0.1
 
         # https://github.com/fpco/stackage/issues/3457
         - log-elasticsearch < 0.10.0.0