diff --git a/build-constraints.yaml b/build-constraints.yaml
index 022738ff..a979321e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -635,20 +635,20 @@ packages:
         - mime-types
         - network-conduit-tls
         - persistent
-        - persistent-mysql < 0 # aeson 1.5
-        - persistent-postgresql < 0 # aeson 1.5
-        - persistent-sqlite < 0 # aeson 1.5
-        - persistent-template < 0 # #5347/closed & aeson 1.5
-        - persistent-test < 0 # aeson 1.5 # #4492/closed
+        - persistent-mysql
+        - persistent-postgresql
+        - persistent-sqlite
+        - persistent-template < 2.8.3  # #5347/closed
+        - persistent-test
         # - stackage-curator # http-conduit 2.3 via amazonka
         - store
         - wai-extra
         - wai-websockets
         - warp-tls
-        - yesod < 0 # aeson 1.5 via yesod-persistent
+        - yesod
         - authenticate
         - html-conduit
-        - yesod-auth < 0 # aeson 1.5 via yesod-persistent
+        - yesod-auth
         - authenticate-oauth
         - yesod-bin
         - yesod-eventsource < 0 # via yesod-core
@@ -1352,7 +1352,7 @@ packages:
         - hledger
         - hledger-lib
         - hledger-ui
-        - hledger-web < 0 # aeson 1.5 via yesod-persistent via yesod-form
+        - hledger-web
         #
         - quickbench < 0 # via docopt
         - regex-compat-tdfa
@@ -2373,7 +2373,7 @@ packages:
         - esqueleto < 0 # aeson 1.5
         - hedgehog-fakedata
         - persistent-typed-db < 0 # aeson 1.5
-        - persistent-qq < 0 # aeson 1.5
+        - persistent-qq
         - persistent-pagination < 0 # aeson 1.5
         - hspec-hedgehog
 
@@ -4849,8 +4849,8 @@ packages:
         - yeshql-core < 0 # MonadFail
         - yeshql-hdbc < 0 # via HDBC
         - yesod-core
-        - yesod-form < 0 # aeson 1.5 via yesod-persistent
-        - yesod-persistent < 0 # aeson 1.5
+        - yesod-form
+        - yesod-persistent
         - zlib
         - zlib-bindings