diff --git a/build-constraints.yaml b/build-constraints.yaml
index 29df1be0..a51f3777 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1237,6 +1237,7 @@ packages:
 
         # https://github.com/fpco/stackage/issues/703
         - warp < 3.1
+        - warp-tls < 3.1
 
 # Package flags are applied to individual packages, and override the values of
 # global-flags