diff --git a/build-constraints.yaml b/build-constraints.yaml
index 65c05960..4613281b 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -886,6 +886,9 @@ packages:
         # https://github.com/fpco/stackage/issues/517
         - generic-deriving < 1.7
 
+        # https://github.com/fpco/stackage/issues/521
+        - tagged < 0.8
+
 # Package flags are applied to individual packages, and override the values of
 # global-flags
 package-flags: