diff --git a/build-constraints.yaml b/build-constraints.yaml
index d7be0bbf..5490907d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3149,8 +3149,8 @@ packages:
         - javascript-extras
         - l10n
         - pipes-category
-        - pipes-fluid
-        - pipes-misc
+        # pipes-fluid # blocked on pipes-misc
+        # pipes-misc # blocked due to https://github.com/fpco/stackage/issues/2946
         - stm-extras
 
     "Siniša Biđin <sinisa@bidin.eu> @sbidin":