diff --git a/Etage-Graph.cabal b/Etage-Graph.cabal
--- a/Etage-Graph.cabal
+++ b/Etage-Graph.cabal
@@ -1,5 +1,5 @@
 Name:                Etage-Graph
-Version:             0.1.7
+Version:             0.1.8
 Synopsis:            Data-flow based graph algorithms
 Description:         Data-flow based graph algorithms using the "Control.Etage" framework, showcasing its use for data-flow
                      computations. It is meant to be used with the "Data.Graph.Inductive" package which provides graph structures
diff --git a/lib/Data/Graph/Etage.hs b/lib/Data/Graph/Etage.hs
--- a/lib/Data/Graph/Etage.hs
+++ b/lib/Data/Graph/Etage.hs
@@ -22,7 +22,6 @@
 #else
 import Data.Map hiding (filter, map, empty, null, lookup)
 #endif
-import Data.Tuple
 import System.IO
 
 import Control.Etage
diff --git a/src/Test.hs b/src/Test.hs
--- a/src/Test.hs
+++ b/src/Test.hs
@@ -26,7 +26,6 @@
 import System.Console.GetOpt
 import System.Environment
 import System.Exit
-import System.IO
 import System.Random
 import System.Timeout
 import Text.Printf