diff --git a/systemd.cabal b/systemd.cabal
--- a/systemd.cabal
+++ b/systemd.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                systemd
-version:             1.0.2
+version:             1.0.3
 synopsis:            Systemd facilities (Socket activation, Notify)
 description:         A module for Systemd facilities.
 homepage:            https://github.com/erebe/systemd
@@ -35,6 +35,6 @@
    type:                exitcode-stdio-1.0
    main-is:             Main.hs
    default-language:    Haskell2010
-   build-depends:       base >=4.7 && <= 4.8.1.0,
-                        systemd
+   build-depends:       base == 4.*
+                        , systemd
    default-language:    Haskell2010