diff --git a/build-constraints.yaml b/build-constraints.yaml
index fe7d8b61..8aca55ee 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3408,6 +3408,9 @@ packages:
 
         # https://github.com/fpco/stackage/issues/2893
         - megaparsec < 6.2.0
+
+        # https://github.com/fpco/stackage/issues/2891
+        - irc-client < 1.0.0.0
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of