diff --git a/build-constraints.yaml b/build-constraints.yaml
index f7b61244..c237de8a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -165,7 +165,8 @@ packages:
         - qchas
 
     "Patrick Pelletier <code@funwithsoftware.org> @ppelleti":
-        - mercury-api
+        # https://github.com/ppelleti/hs-mercury-api/issues/2
+        # - mercury-api
         - normalization-insensitive < 0 # GHC 8.4 via unicode-transforms
 
     "Jacob Stanley <jacob@stanley.io> @jystic":