diff --git a/build-constraints.yaml b/build-constraints.yaml
index c04a738e..0149374a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -871,7 +871,7 @@ packages:
         - yesod-newsfeed
         - yesod-sitemap
         - yesod-static
-        - yesod-test
+        - yesod-test < 1.6.19 # https://github.com/yesodweb/yesod/issues/1848
         - yesod-websockets
         - cereal-conduit
         - binary-conduit