diff --git a/build-constraints.yaml b/build-constraints.yaml
index 429e8a45..ecbf344c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5340,7 +5340,7 @@ packages:
         - ini
 
     "Joosep Jääger <joosep.jaager@gmail.com> @Soupstraw":
-        - antigen
+        - antigen < 0.4 # https://github.com/commercialhaskell/stackage/issues/7962
 
     "Carl Wernhoff <carl@wernhoff.com> @carlwr":
         - effable