diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 hydrogen-version
 ================
+
+[![Build Status](https://travis-ci.org/scravy/hydrogen-version.svg?branch=master)](https://travis-ci.org/scravy/hydrogen-version)
  
 A sane replacement for
 [`Data.Version`](http://hackage.haskell.org/package/base-4.7.0.2/docs/Data-Version.html)
diff --git a/hydrogen-version.cabal b/hydrogen-version.cabal
--- a/hydrogen-version.cabal
+++ b/hydrogen-version.cabal
@@ -1,5 +1,5 @@
 name:               hydrogen-version
-version:            1.3
+version:            1.4
 homepage:           https://scravy.de/hydrogen-version/
 synopsis:           Hydrogen Version Type
 description:        A sane replacement for "Data.Version" from the @base@ package.
@@ -45,6 +45,8 @@
 library
   exposed-modules:      Hydrogen.Version
   build-depends:        base ==4.*
+  if impl(ghc <= 7.6)
+    build-depends:      ghc-prim
   hs-source-dirs:       src
   ghc-options:          -Wall
   default-language:     Haskell2010