diff --git a/esqueleto.cabal b/esqueleto.cabal
index af54e38..1bd8724 100644
--- a/esqueleto.cabal
+++ b/esqueleto.cabal
@@ -64,7 +64,7 @@ library
   other-modules:
     Database.Esqueleto.Internal.PersistentImport
   build-depends:
-      base                 >= 4.5    && < 4.8
+      base                 >= 4.5    && < 4.9
     , text                 >= 0.11   && < 1.3
     , persistent           >= 2.1    && < 2.2
     , transformers         >= 0.2