diff --git a/build-constraints.yaml b/build-constraints.yaml
index 395714f7..dbdd279d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2053,10 +2053,8 @@ packages:
         - taggy
         - taggy-lens
 
-    # https://github.com/fpco/stackage/issues/1297
-    # https://github.com/fpco/stackage/issues/1299
-    # "Alex McLean <lxyxpx@gmail.com> @yaxu":
-    #     - tidal
+    "Alex McLean <lxyxpx@gmail.com> @yaxu":
+        - tidal
 
     "Kei Hibino <ex8k.hibino@gmail.com> @khibino":
         - relational-query
@@ -2622,6 +2620,9 @@ expected-test-failures:
 
     # https://github.com/himura/twitter-types/issues/38
     - twitter-types
+
+    # https://github.com/fpco/stackage/issues/1299
+    - serialport
 # end of expected-test-failures