diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2426b951..8b35f714 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1108,8 +1108,6 @@ packages:
     "Alberto G. Corona <agocorona@gmail.com> @agocorona":
         - RefSerialize
         - TCache
-        - Workflow
-        - MFlow
         - transient-universe
         - axiom
 
@@ -5912,7 +5910,6 @@ packages:
     # they are working.
     "Compilation failures":
         - HDBC-mysql < 0 # 0.7.1.0
-        - Workflow < 0 # 0.8.3
         - accuerr < 0 # 0.2.0.2
         - aeson-lens < 0 # 0.5.0.0
         - aeson-with < 0 # 0.1.2.0 compile fail aeson 2.0
@@ -6052,8 +6049,6 @@ packages:
         - JuicyPixels-blurhash < 0 # tried JuicyPixels-blurhash-0.1.0.3, but its *library* requires vector >=0.10 && < 0.13 and the snapshot contains vector-0.13.2.0
         - JuicyPixels-scale-dct < 0 # tried JuicyPixels-scale-dct-0.1.2, but its *library* requires base >=4.7 && < 4.20 and the snapshot contains base-4.21.0.0
         - JuicyPixels-scale-dct < 0 # tried JuicyPixels-scale-dct-0.1.2, but its *library* requires base-compat >=0.6.0 && < 0.14 and the snapshot contains base-compat-0.14.1
-        - MFlow < 0 # tried MFlow-0.4.6.0, but its *library* requires the disabled package: Workflow
-        - MFlow < 0 # tried MFlow-0.4.6.0, but its *library* requires the disabled package: monadloc
         - Network-NineP < 0 # tried Network-NineP-0.4.7.4, but its *library* requires containers >=0.4.2.1 && < 0.7 and the snapshot contains containers-0.7
         - Network-NineP < 0 # tried Network-NineP-0.4.7.4, but its *library* requires network >=3.0 && < 3.2 and the snapshot contains network-3.2.8.0
         - Rattus < 0 # tried Rattus-0.5.1.1, but its *library* requires ghc >=8.6 && < 9.9 and the snapshot contains ghc-9.12.2