diff --git a/build-constraints.yaml b/build-constraints.yaml
index dcf7f445..fcab666a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1388,7 +1388,7 @@ packages:
         - mysql-simple
         - sphinx < 0 # Could not find module Network
         - xmlhtml < 0 # GHC 8.4 via hspec-2.5.0
-        - yesod-auth-hashdb < 0 # aeson 1.5 via yesod-persistent
+        - yesod-auth-hashdb
 
     "Toralf Wittner <tw@dtex.org> @twittner":
         - bytestring-conversion