diff --git a/build-constraints.yaml b/build-constraints.yaml
index 51ddbf2f..b27015e8 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -186,7 +186,7 @@ packages:
         # Not a maintainer
         - ix-shapable
 
-    "Jeremy Barisch-Rooney <barischj@tcd.ie> @barischj":
+    "Jeremy Barisch-Rooney <barischj@tcd.ie> @barischrooneyj":
         - threepenny-gui-flexbox
 
     "Romain Edelmann <romain.edelmann@gmail.com> @redelmann":
@@ -3428,8 +3428,13 @@ packages:
         - llvm-hs-pure < 6
 
         # https://github.com/fpco/stackage/issues/3334
+        # compilation failures
         - extensible < 0.4.7.2
 
+        # https://github.com/fpco/stackage/issues/3336
+        # compilation failures
+        - clay < 0.12.3
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of