diff --git a/hokey.hs b/hokey.hs
--- a/hokey.hs
+++ b/hokey.hs
@@ -45,8 +45,9 @@
 import Data.Data.Lens (biplate)
 import Data.Either (rights)
 import Data.Graph.Inductive.Graph (Graph(mkGraph))
-import Data.Graph.Inductive.Graphviz (graphviz, Orient(..))
 import Data.Graph.Inductive.PatriciaTree (Gr)
+import Data.GraphViz (graphToDot, nonClusteredParams)
+import Data.GraphViz.Types (printDotGraph)
 import qualified Data.IxSet as IxSet
 import Data.List (unfoldr, elemIndex, findIndex, sortBy, intercalate, nub, sort)
 import qualified Data.Map as Map
@@ -54,6 +55,7 @@
 import Data.Monoid ((<>), mconcat, Monoid(..))
 import Data.Ord (comparing, Down(..))
 import Data.Serialize (get)
+import qualified Data.Text.Lazy.IO as TLIO
 import Data.Time.Clock.POSIX (getPOSIXTime, posixSecondsToUTCTime, POSIXTime)
 import Data.Time.Format (formatTime)
 import Data.Traversable (traverse)
@@ -294,7 +296,7 @@
 doGraph o = do
     cpt <- getPOSIXTime
     kr <- runResourceT $ CB.sourceHandle stdin $= conduitGet get $= conduitToTKsDropping $$ sinkKeyringMap
-    putStrLn $ graphviz (buildKeyGraph ((buildMaps &&& id) (rights (map (verifyTKWith (verifySigWith (verifyAgainstKeyring kr)) (Just (posixSecondsToUTCTime cpt))) (IxSet.toList kr))))) "Keys" (8.5,11.0) (1,1) Landscape
+    TLIO.putStrLn . printDotGraph $ graphToDot nonClusteredParams (buildKeyGraph ((buildMaps &&& id) (rights (map (verifyTKWith (verifySigWith (verifyAgainstKeyring kr)) (Just (posixSecondsToUTCTime cpt))) (IxSet.toList kr)))))
 
 banner' :: Handle -> IO ()
 banner' h = hPutStrLn h (banner "hokey" ++ "\n" ++ warranty "hokey")
diff --git a/hopenpgp-tools.cabal b/hopenpgp-tools.cabal
--- a/hopenpgp-tools.cabal
+++ b/hopenpgp-tools.cabal
@@ -1,5 +1,5 @@
 name:                hopenpgp-tools
-version:             0.7.1
+version:             0.7.2
 synopsis:            hOpenPGP-based command-line tools
 description:         command-line tools for performing some OpenPGP-related operations
 homepage:            http://floss.scru.org/hopenpgp-tools
@@ -51,7 +51,8 @@
                ,       cryptohash             >= 0.7.7
                ,       directory
                ,       errors
-               ,       fgl                              < 5.5
+               ,       fgl
+               ,       graphviz
                ,       hOpenPGP               >= 1.2
                ,       ixset
                ,       lens
@@ -94,4 +95,4 @@
 source-repository this
   type:     git
   location: git://git.debian.org/users/clint/hopenpgp-tools.git
-  tag:      hopenpgp-tools/0.7.1
+  tag:      hopenpgp-tools/0.7.2