diff --git a/build-constraints.yaml b/build-constraints.yaml
index a9e25ebb..24ea4392 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1424,7 +1424,7 @@ packages:
         - wai-middleware-caching-redis < 0 # GHC 8.4 via hedis
 
     "Paul Rouse <pgr@doynton.org> @paul-rouse":
-        - mysql
+        - mysql < 0.2 # https://github.com/commercialhaskell/stackage/issues/5891
         - mysql-simple
         - sphinx < 0 # Could not find module Network
         - xmlhtml < 0 # GHC 8.4 via hspec-2.5.0