diff --git a/build-constraints.yaml b/build-constraints.yaml
index 72883626..6cf455fa 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5099,6 +5099,8 @@ packages:
 
       # https://github.com/commercialhaskell/stackage/issues/5808
       - conferer < 1.0.0.0
+      - conferer-hspec < 1.0.0.0
+      - conferer-warp < 1.0.0.0
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of