diff --git a/Data/Graph/Inductive/Dot.hs b/Data/Graph/Inductive/Dot.hs
--- a/Data/Graph/Inductive/Dot.hs
+++ b/Data/Graph/Inductive/Dot.hs
@@ -5,8 +5,8 @@
 
 @
     let dot = showDot (fglToDot graph)
-    writeFile "file.dot" dot
-    system("dot -Tpng -ofile.png file.dot")
+    writeFile \"file.dot\" dot
+    system(\"dot -Tpng -ofile.png file.dot\")
 @
 -}
 
diff --git a/fgl-visualize.cabal b/fgl-visualize.cabal
--- a/fgl-visualize.cabal
+++ b/fgl-visualize.cabal
@@ -1,5 +1,5 @@
 Name:                fgl-visualize
-Version:             0.1
+Version:             0.1.0.1
 Synopsis:            Convert FGL graphs to dot (graphviz) files
 Description:         Convert FGL graphs to dot files for easy visualization
                      using the 'dot' tool.  Other visualizations might follow
@@ -26,7 +26,7 @@
 
 Library
   Exposed-modules:    Data.Graph.Inductive.Dot
-  Build-depends:      base >= 4 && < 4.6, fgl == 5.4.*, dotgen == 0.4.*
+  Build-depends:      base >= 4 && < 5, fgl >= 5.4, dotgen >= 0.4
   
   -- Other-modules:       
   -- Build-tools: