diff --git a/build-constraints.yaml b/build-constraints.yaml
index fcff4956..fdfc9254 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3477,6 +3477,9 @@ packages:
         # https://github.com/fpco/stackage/issues/2978
         - conduit-extra < 1.2.0
 
+        # https://github.com/Quid2/zm/issues/1
+        - zm < 0.2.4
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of
@@ -3949,6 +3952,7 @@ expected-test-failures:
 
     # Doctest failures
     - teardown
+    - model # https://github.com/Quid2/model/issues/2
 
     # Misc.
     - distributed-process-supervisor # # https://github.com/haskell-d