diff --git a/Haskintex.hs b/Haskintex.hs
--- a/Haskintex.hs
+++ b/Haskintex.hs
@@ -185,12 +185,12 @@
     xs = [ string "memo" >> return True
          , string "notmemo" >> return False ]
 
-processExp :: (H.Exp -> H.Exp) -- ^ Transformation to apply to Haskell Expression
+processExp :: (H.Exp () -> H.Exp ()) -- ^ Transformation to apply to Haskell Expression
            -> Text -- ^ Haskell expression
            -> Parser Text
 processExp f t = do
   return $ case H.parseExp (unpack t) of
-    H.ParseOk e -> pack $ H.prettyPrint $ f e
+    H.ParseOk e -> pack $ H.prettyPrint $ f $ const () <$> e
     _ -> t
 
 p_inserthatex :: Bool -- False for pure, True for IO
@@ -205,9 +205,9 @@
   _ <- char '{'
   h <- p_haskell 0
   auto <- lift $ autotexyFlag <$> get
-  let v = H.Var . H.UnQual . H.Ident
-      f = if auto then H.App $ if isIO then v "fmap" `H.App` v "texy"
-                                       else v "texy" 
+  let v = H.Var () . H.UnQual () . H.Ident ()
+      f = if auto then H.App () $ if isIO then H.App () (v "fmap") (v "texy")
+                                          else v "texy" 
                   else id
   cons b <$> processExp f (pack h)
 
diff --git a/haskintex.cabal b/haskintex.cabal
--- a/haskintex.cabal
+++ b/haskintex.cabal
@@ -1,5 +1,5 @@
 name:                haskintex
-version:             0.6.0.1
+version:             0.7.0.0
 synopsis:            Haskell Evaluation inside of LaTeX code.
 description:
   The /haskintex/ (Haskell in LaTeX) program is a tool that reads a LaTeX file and evaluates Haskell expressions contained
@@ -58,7 +58,7 @@
                , hint >= 0.3.3
                , containers >= 0.5.5
                , binary >= 0.7.1
-               , haskell-src-exts >= 1.15.0
+               , haskell-src-exts >= 1.18.2
   exposed-modules: Haskintex
   other-modules: Paths_haskintex
   ghc-options: -Wall