diff --git a/build-constraints.yaml b/build-constraints.yaml
index 4fd6b763..08ba23f9 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7689,6 +7689,7 @@ expected-test-failures:
     - wai-cors # PhantomJS
     - wai-session-postgresql # PostgreSQL
     - wai-rate-limit-redis # Redis
+    - wai-session-redis # https://github.com/commercialhaskell/stackage/pull/5980
     - web3 # requires running server
     - webdriver-angular # webdriver server
     - websockets