diff --git a/build-constraints.yaml b/build-constraints.yaml
index 50cf7335..a0e79746 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -95,7 +95,7 @@ packages:
     "Pasqualino Assini <tittoassini@gmail.com> @tittoassini":
         # - zm # haskell-src-exts via derive
         # - flat # haskell-src-exts via derive
-        - model < 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build
+        - model # 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build
 
     "Jose Iborra <pepeiborra@gmail.com> @pepeiborra":
         # - arrowp-qq # build failure https://github.com/pepeiborra/arrowp/issues/8
@@ -106,7 +106,7 @@ packages:
         - hp2pretty
         - floatshow
         - NoHoed
-        - threepenny-editors < 0 # GHC 8.4
+        - threepenny-editors # 0 # GHC 8.4
         # - clr-inline # haskell-src-exts via here # possibly nondeterministic failures, see https://github.com/fpco/stackage/issues/2510
         - strict-types < 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build