diff --git a/build-constraints.yaml b/build-constraints.yaml
index 4b6ad9e7..19d43237 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5630,6 +5630,7 @@ expected-test-failures:
     - yesod-gitrev # https://github.com/DanBurton/yesod-gitrev/issues/5
     - chronos # #5443/closed
     - massiv
+    - safe-json # https://github.com/Vlix/safe-json/issues/22
 
     # Recursive deps https://github.com/fpco/stackage/issues/1818
     - options