diff --git a/build-constraints.yaml b/build-constraints.yaml
index 26717ffc..4ce40efb 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2141,6 +2141,7 @@ packages:
         - speculate
         - extrapolate
         - percent-format
+        - tasty-leancheck
 
     "Trevor Elliott <awesomelyawesome@gmail.com> @elliottt":
         - irc