diff --git a/build-constraints.yaml b/build-constraints.yaml
index 0e314927..bb194b26 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1077,6 +1077,7 @@ packages:
         - dhall < 1.31.0 # https://github.com/commercialhaskell/stackage/issues/5275
         - dhall-bash < 1.0.29 # via dhall
         - dhall-json < 1.6.3 # via dhall
+        - dhall-lsp-server
         - dhall-yaml < 1.0.3 # via dhall
         - aeson-yaml  # req'd by dhall-json
         # - dhall-nix # deriving-compat via hnix