diff --git a/c2hsc.cabal b/c2hsc.cabal
--- a/c2hsc.cabal
+++ b/c2hsc.cabal
@@ -1,6 +1,6 @@
 Name: c2hsc
 
-Version:  0.3.2
+Version:  0.3.3
 Synopsis: Convert C API header files to .hsc and .hsc.helper.c files
 
 Description: Convert C API header files to .hsc and .hsc.helper.c files
@@ -20,16 +20,16 @@
   Main-is: Main.hs
   Ghc-options: -Wall
 
-  Build-depends: base >= 4 && < 5
-               , mtl
-               , containers
-               , transformers
-               , directory
-               , language-c
-               , HStringTemplate
-               , pretty
-               , filepath
-               , cmdargs
+  Build-depends: base            >= 4   && < 5
+               , mtl             >= 2.0
+               , containers      >= 0.4
+               , transformers    >= 0.2
+               , directory       >= 1.1
+               , language-c      >= 0.4
+               , HStringTemplate >= 0.6
+               , pretty          >= 1.1
+               , filepath        >= 1.3
+               , cmdargs         >= 0.9
 
 --Test-suite smoke
 --  Type: exitcode-stdio-1.0