diff --git a/coroutine-object.cabal b/coroutine-object.cabal
--- a/coroutine-object.cabal
+++ b/coroutine-object.cabal
@@ -1,5 +1,5 @@
 Name:		coroutine-object
-Version:	0.1
+Version:	0.1.0
 Synopsis:       Object-oriented programming realization using coroutine 
 Description: 	Object-oriented programming realization using coroutine 
 License: 	BSD3
@@ -15,12 +15,12 @@
   ghc-prof-options: -caf-all -auto-all
   Build-Depends:   base >4 && <5, 
                    mtl>2, 
-                   lens >= 2.4 && < 2.7,
-                   containers == 0.4.*,
+                   lens >= 2.4,
+                   containers >= 0.4,
                    transformers == 0.3.*, 
                    transformers-free == 1.0.*, 
-                   bytestring == 0.9.*,
-                   safecopy == 0.6.*,
+                   bytestring >= 0.9,
+                   safecopy >= 0.6,
                    uuid == 1.2.*,
                    cereal == 0.3.*
   Other-Modules: