diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2ebb5d88..ffc1a214 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7848,6 +7848,7 @@ packages:
         - tls-session-manager < 0.1.0
         - smtp-mail < 0.5.0.1
         - pusher-http-haskell < 2.1.0.22
+        - mysql-haskell < 1.2.1
 
         # https://github.com/commercialhaskell/stackage/issues/7930
         - happy < 2.2