diff --git a/projectroot.cabal b/projectroot.cabal
--- a/projectroot.cabal
+++ b/projectroot.cabal
@@ -1,5 +1,5 @@
 name:                projectroot
-version:             0.1.0.0
+version:             0.1.0.1
 synopsis:            Bindings to the projectroot C logic
 description: Simple way of finding the root of a project given an
              entry-point. This module provides bindings to the
@@ -16,7 +16,7 @@
 
 library
   exposed-modules:     System.Directory.ProjectRoot
-  build-depends:       base >=4.8 && <4.9
+  build-depends:       base >=4 && <5
                      , directory
   hs-source-dirs:      src
   default-language:    Haskell2010
@@ -24,4 +24,5 @@
                      , ./projectroot/deps/commander/commander.c
   install-includes:    ./projectroot/libprojectroot.h
                      , ./projectroot/deps/commander/commander.h
+  cc-options:          -std=c99
   include-dirs:        .