diff --git a/hasql-notifications.cabal b/hasql-notifications.cabal
index 030633a..c2fc5cf 100644
--- a/hasql-notifications.cabal
+++ b/hasql-notifications.cabal
@@ -17,12 +17,12 @@ library
   hs-source-dirs:      src
   exposed-modules:     Hasql.Notifications
   build-depends:       base >= 4.7 && < 5
-                     , bytestring >= 0.10.8.2
+                     , bytestring >= 0.10.8.2 && < 0.12
                      , text >= 2 && < 2.2
                      , hasql-pool >= 1.2 && < 1.3
                      , bytestring >= 0.10
                      , postgresql-libpq >= 0.9 && < 1.0
-                     , hasql >= 0.19
+                     , hasql >= 0.19 && < 1.8
 
   default-language:    Haskell2010
   ghc-options:         -Wall