diff --git a/build-constraints.yaml b/build-constraints.yaml
index 5caa4d4f..35cda327 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4073,7 +4073,9 @@ packages:
     "Sergey Vinokurov <serg.foo@gmail.com> @sergv":
         - bencoding < 0 # via bencode
         - emacs-module < 0 # ghc 8.10.1 #5436/closed
-        - tasty-ant-xml
+        # https://github.com/commercialhaskell/stackage/issues/5820
+        # via https://github.com/commercialhaskell/stackage/issues/5795 1.4
+        - tasty-ant-xml < 1.1.8
 
     "Eugene Smolanka <esmolanka@gmail.com> @esmolanka":
         - sexp-grammar