diff --git a/build-constraints.yaml b/build-constraints.yaml
index 38af40de..4c0e3de3 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2204,6 +2204,9 @@ expected-test-failures:
 
     # https://github.com/fpco/stackage/issues/1000
     - eventstore
+
+    # https://github.com/snapframework/io-streams/issues/50
+    - io-streams
 # end of expected-test-failures