diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2532775b..fd0fa6ee 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4225,8 +4225,7 @@ packages:
         - ulid
 
     "Rickey Visinski <rickeyvisinski+hs@gmail.com> @rickeyski":
-        []
-        # - slack-api # https://github.com/commercialhaskell/stackage/pull/5345
+        - slack-api
 
     "Grandfathered dependencies":
         - network
@@ -5447,6 +5446,7 @@ expected-test-failures:
     - serialport # "The tests need two serial ports as command line arguments" https://github.com/jputcu/serialport/issues/30
     - serversession-backend-redis # redis
     - shake # Needs ghc on $PATH with some installed haskell packages
+    - slack-api # needs api key https://github.com/commercialhaskell/stackage/pull/5345
     - stripe-http-streams # https://github.com/fpco/stackage/issues/2945, needs Stripe account
     - users-persistent # sqlite
     - users-postgresql-simple # PostgreSQL