diff --git a/src/Main1.hs b/src/Main1.hs
index 6d3c79b..b13330b 100644
--- a/src/Main1.hs
+++ b/src/Main1.hs
@@ -1,10 +1,13 @@
-{-# LANGUAGE DeriveDataTypeable #-}  
+{-# LANGUAGE DeriveGeneric #-}  
 module Main where
 
+import GHC.Generics
+import Data.Aeson
+import Data.Aeson.Types
+
 import System.Environment
 import qualified Data.ByteString.Lazy as BS
-import System.IO  
-import Text.JSON.Generic  
+import System.IO    
 import Datatypes
 import Opt
 import JSONDeser
@@ -15,7 +18,10 @@ data JSONSer = JSONSer { problemId :: Int,
                          seed :: Int,
                          tag :: String,
                          solution :: String
-                       } deriving (Show, Data, Typeable)
+                       } deriving (Show, Generic)
+
+instance FromJSON JSONSer
+instance ToJSON JSONSer
 
 main :: IO ()
 main = do args <- getArgs
@@ -26,7 +32,7 @@ main = do args <- getArgs
           commandspoints <- return (map (\(seed,game) -> strat1 game) gmseed)
           (commands,points) <- return $ unzip commandspoints
           seeds <- return ((map (\(seed, _) -> seed)) gmseed)
-          putStrLn . encodeJSON $ (packAll id seeds commands)
+          putStrLn $ show $ encode $ (packAll id seeds commands)
 --	  print points
           writeFile ("scores")  (scoredata id (fst $ unzip gmseed) points)