diff --git a/build-constraints.yaml b/build-constraints.yaml
index 6dc4f8c4..c896155f 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8662,6 +8662,7 @@ expected-test-failures:
     - katip-elasticsearch # elasticsearch
     - katip-wai # 0.2.0.0
     - koji-tool
+    - langchain-hs # assumes local HTTP endpoint
     - log # ElasticSearch
     - lsp-test # example: lsp-demo-reactor-server: createProcess: posix_spawnp: does not exist (No such file or directory)
     - lz4 # executable not found https://github.com/commercialhaskell/stackage/issues/6226