diff --git a/google-drive.cabal b/google-drive.cabal
--- a/google-drive.cabal
+++ b/google-drive.cabal
@@ -1,5 +1,5 @@
 Name:                   google-drive
-Version:                0.4.0
+Version:                0.4.1
 Author:                 Pat Brisbin <pbrisbin@gmail.com>
 Maintainer:             Pat Brisbin <pbrisbin@gmail.com>
 License:                MIT
@@ -33,11 +33,11 @@
                       , filepath
                       , http-conduit    >= 2.1          && < 2.2
                       , http-types
-                      , mtl
+                      , mtl             >= 2.2.1
                       , random
                       , resourcet
                       , text
-                      , time
+                      , time            >= 1.5
                       , unordered-containers
 
 Test-Suite spec