diff --git a/build-constraints.yaml b/build-constraints.yaml
index 89249691..be3b7f43 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1578,7 +1578,7 @@ packages:
         - wai-middleware-caching-redis
 
     "Paul Rouse <pgr@doynton.org> @paul-rouse":
-        - mysql
+        - mysql < 0 # https://github.com/paul-rouse/mysql/issues/50
         - mysql-simple
         - sphinx
         - xmlhtml
@@ -7332,6 +7332,8 @@ packages:
         - mysql-haskell < 0 # tried mysql-haskell-1.1.6, but its *library* requires data-default-class >=0.1.2 && < 0.2 and the snapshot contains data-default-class-0.2.0.0
         - mysql-haskell-nem < 0 # tried mysql-haskell-nem-0.1.0.0, but its *library* requires the disabled package: mysql-haskell
         - mysql-haskell-openssl < 0 # tried mysql-haskell-openssl-0.8.3.1, but its *library* requires mysql-haskell >=0.8.3 && < 0.8.5 and the snapshot contains mysql-haskell-1.1.6
+        - mysql-json-table < 0 # tried mysql-json-table-0.1.4.1, but its *library* requires the disabled package: mysql
+        - mysql-simple < 0 # tried mysql-simple-0.4.9, but its *library* requires the disabled package: mysql
         - n2o-web < 0 # tried n2o-web-0.11.2, but its *library* requires the disabled package: n2o-protocols
         - nakadi-client < 0 # tried nakadi-client-0.7.0.0, but its *library* requires resourcet >=1.2.0 && < 1.3 and the snapshot contains resourcet-1.3.0
         - named-text < 0 # tried named-text-1.2.1.0, but its *library* requires base >=4.13 && < 4.21 and the snapshot contains base-4.21.0.0
@@ -7466,6 +7468,7 @@ packages:
         - persistable-types-HDBC-pg < 0 # tried persistable-types-HDBC-pg-0.0.3.5, but its *library* requires the disabled package: HDBC
         - persistent-mongoDB < 0 # tried persistent-mongoDB-2.13.1.0, but its *library* requires resource-pool >=0.2 && < 0.5 and the snapshot contains resource-pool-0.5.0.0
         - persistent-mtl < 0 # tried persistent-mtl-0.5.2, but its *library* requires the disabled package: unliftio-pool
+        - persistent-mysql < 0 # tried persistent-mysql-2.13.1.5, but its *library* requires the disabled package: mysql
         - persistent-mysql-haskell < 0 # tried persistent-mysql-haskell-0.6.0, but its *library* requires mysql-haskell >=0.8.0.0 && < 1.0 and the snapshot contains mysql-haskell-1.1.6
         - persistent-mysql-haskell < 0 # tried persistent-mysql-haskell-0.6.0, but its *library* requires tls >=1.3.5 && < 1.5 and the snapshot contains tls-2.1.10
         - persistent-postgresql < 0 # tried persistent-postgresql-2.13.7.0, but its *library* requires the disabled package: postgresql-simple