diff --git a/build-constraints.yaml b/build-constraints.yaml
index 1f39808a..0aa721e5 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -6831,10 +6831,8 @@ packages:
         - monad-bayes < 0 # tried monad-bayes-0.1.1.0, but its *library* does not support: mwc-random-0.15.0.2
         - monad-bayes < 0 # tried monad-bayes-0.1.1.0, but its *library* does not support: statistics-0.16.0.2
         - monad-control-aligned < 0 # tried monad-control-aligned-0.0.1.1, but its *library* does not support: transformers-compat-0.7.1
-        - monad-coroutine < 0 # tried monad-coroutine-0.9.1.3, but its *library* does not support: transformers-compat-0.7.1
         - monad-metrics < 0 # tried monad-metrics-0.2.2.0, but its *library* does not support: hashable-1.4.0.2
         - monad-mock < 0 # tried monad-mock-0.2.0.0, but its *library* does not support: template-haskell-2.18.0.0
-        - monad-parallel < 0 # tried monad-parallel-0.7.2.5, but its *library* does not support: transformers-compat-0.7.1
         - monad-unlift-ref < 0 # tried monad-unlift-ref-0.2.1, but its *library* requires the disabled package: monad-unlift
         - monoidal-containers < 0 # tried monoidal-containers-0.6.2.0, but its *library* does not support: base-4.16.1.0
         - monomer < 0 # tried monomer-1.3.0.0, but its *library* requires the disabled package: OpenGL