diff --git a/build-constraints.yaml b/build-constraints.yaml
index 6cfbae5e..193e90b8 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3464,6 +3464,9 @@ packages:
         # https://github.com/commercialhaskell/hindent/issues/453
         - hindent < 5.2.4
 
+        # https://github.com/athanclark/attoparsec-uri/issues/1
+        - ip < 1.0.0
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of