diff --git a/build-constraints.yaml b/build-constraints.yaml
index 007d7213..730b50d4 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -222,7 +222,7 @@ packages:
 
     "Matej Niznik <matten@tuta.io> @TheMatten":
         - polysemy
-        - polysemy-plugin
+        - polysemy-plugin < 0 # https://github.com/polysemy-research/polysemy/issues/457
         - polysemy-zoo
         - loopbreaker
 
@@ -4826,7 +4826,7 @@ packages:
         - valida-base
 
     "Andrew Miller <andrew@amxl.com> @A1kmm":
-        - polysemy-webserver
+        - polysemy-webserver < 0 # via polysemy-plugin
 
     "Simon Shine <shreddedglory@gmail.com> @sshine":
         - evm-opcodes