diff --git a/build-constraints.yaml b/build-constraints.yaml
index 5f2eef09..f46a7751 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1991,7 +1991,7 @@ packages:
     "Timo von Holtz <tvh@tvholtz.de> @tvh":
         - ekg-wai
         # - haxl-amazonka # http-conduit 2.3 via amazonka
-        - hasql-migration
+        - hasql-migration < 0 # https://github.com/tvh/hasql-migration/issues/4
         - servant-JuicyPixels < 0 # GHC 8.4 via base-4.11.0.0
 
     "Artyom <yom@artyom.me> @neongreen":
@@ -2317,7 +2317,7 @@ packages:
     "Yorick Laupa yo.eight@gmail.com @YoEight":
         - eventstore < 0 # GHC 8.4 via text-format
         - dotnet-timespan
-        - eventsource-api
+        - eventsource-api < 0 # GHC 8.4 build failure
         - eventsource-geteventstore-store < 0 # GHC 8.4 via protolude
         - eventsource-store-specs < 0 # tasty-hspec
         - eventsource-stub-store < 0 # GHC 8.4 via protolude