diff --git a/hasql-backend.cabal b/hasql-backend.cabal
--- a/hasql-backend.cabal
+++ b/hasql-backend.cabal
@@ -1,7 +1,7 @@
 name:
   hasql-backend
 version:
-  0.4.0
+  0.4.1
 synopsis:
   API for backends of "hasql"
 description:
@@ -55,8 +55,7 @@
     list-t < 0.5,
     transformers >= 0.3 && < 0.5,
     -- general:
-    base-prelude < 0.2,
-    base >= 4.5 && < 4.8
+    base-prelude < 0.2
   ghc-options:
     -funbox-strict-fields
   default-extensions: