diff --git a/build-constraints.yaml b/build-constraints.yaml
index 3fbce4fd..c93239e9 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -780,6 +780,9 @@ packages:
         # https://github.com/fpco/stackage/issues/464
         - profunctors < 4.4
 
+        # https://github.com/fpco/stackage/issues/465
+        - free < 4.11
+
 # Package flags are applied to individual packages, and override the values of
 # global-flags
 package-flags: