diff --git a/build-constraints.yaml b/build-constraints.yaml
index c7898b76..4961eae6 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -823,7 +823,7 @@ packages:
         - type-operators
 
     "Sebastiaan Visser <haskell@fvisser.nl> @sebastiaanvisser":
-        - clay < 0 # build failure with GHC 8.4 https://github.com/sebastiaanvisser/clay/issues/171
+        - clay
         - fclabels
 
     "Robert Klotzner <robert.klotzner@gmx.at> @eskimor":