diff --git a/hoodle-core.cabal b/hoodle-core.cabal
--- a/hoodle-core.cabal
+++ b/hoodle-core.cabal
@@ -1,5 +1,5 @@
 Name:		hoodle-core
-Version:	0.9
+Version:	0.9.0
 Synopsis:	Core library for hoodle
 Description: 	Hoodle is a pen notetaking program written in haskell. 
                 hoodle-core is the core library written in haskell and 
diff --git a/src/Hoodle/Coroutine/Layer.hs b/src/Hoodle/Coroutine/Layer.hs
--- a/src/Hoodle/Coroutine/Layer.hs
+++ b/src/Hoodle/Coroutine/Layer.hs
@@ -19,7 +19,7 @@
 import Control.Compose
 import Control.Category
 -- import Data.Label
-import Control.Lens 
+import Control.Lens (view,set)
 import Data.IORef
 import Graphics.UI.Gtk hiding (get,set)
 --
diff --git a/src/Hoodle/Coroutine/Pen.hs b/src/Hoodle/Coroutine/Pen.hs
--- a/src/Hoodle/Coroutine/Pen.hs
+++ b/src/Hoodle/Coroutine/Pen.hs
@@ -16,7 +16,7 @@
 
 -- from other packages
 import           Control.Category
-import           Control.Lens
+import           Control.Lens (view,set)
 import           Control.Monad
 import           Control.Monad.State
 -- import Control.Monad.Trans
diff --git a/src/Hoodle/Coroutine/Select.hs b/src/Hoodle/Coroutine/Select.hs
--- a/src/Hoodle/Coroutine/Select.hs
+++ b/src/Hoodle/Coroutine/Select.hs
@@ -16,7 +16,7 @@
 
 -- from other package 
 import           Control.Category
-import           Control.Lens
+import           Control.Lens (view,set)
 import           Control.Monad
 import           Control.Monad.Identity
 import           Control.Monad.State
diff --git a/src/Hoodle/View/Draw.hs b/src/Hoodle/View/Draw.hs
--- a/src/Hoodle/View/Draw.hs
+++ b/src/Hoodle/View/Draw.hs
@@ -22,7 +22,7 @@
 import Graphics.UI.Gtk hiding (get,set)
 import Graphics.Rendering.Cairo
 import Control.Category ((.))
-import           Control.Lens
+import           Control.Lens (view,set,at)
 import Control.Monad (when)
 import Data.Foldable
 import qualified Data.IntMap as M