diff --git a/ghc-vis.cabal b/ghc-vis.cabal
--- a/ghc-vis.cabal
+++ b/ghc-vis.cabal
@@ -1,5 +1,5 @@
 name:               ghc-vis
-version:            0.6
+version:            0.6.1
 license:            BSD3
 license-file:       LICENSE
 category:           GHC, Debug, Development
@@ -40,22 +40,23 @@
   Exposed-modules: GHC.Vis
   Other-modules: GHC.Vis.Internal GHC.Vis.Types GHC.Vis.View.List GHC.Vis.View.Common Paths_ghc_vis
   Default-Language: Haskell2010
-  Build-depends: base == 4.*,
-                 mtl >= 2.0,
-                 fgl,
-                 deepseq,
-                 text,
-                 transformers,
+  Build-depends: base == 4.6.*,
+                 mtl >= 2.0 && < 2.2,
+                 fgl == 5.4.*,
+                 deepseq == 1.3.*,
+                 text == 0.11.*,
+                 transformers == 0.3.*,
+                 containers >= 0.4 && < 0.6,
                  gtk == 0.12.*,
                  cairo == 0.12.*,
-                 ghc-heap-view >= 0.3.0.3
+                 ghc-heap-view == 0.4.*
   Hs-source-dirs: src/
   Ghc-options: -Wall -fno-warn-unused-do-bind
 
   if flag(graph)
       Other-modules: GHC.Vis.View.Graph.Parser GHC.Vis.View.Graph
-      Build-depends: graphviz >= 2999.14.1.0,
-                     xdot >= 0.2
+      Build-depends: graphviz == 2999.16.*,
+                     xdot == 0.2.*
       Cpp-options: -DGRAPH_VIEW
 
   if flag(full)
@@ -63,8 +64,7 @@
       Cpp-options: -DFULL_WINDOW
 
   if flag(sdl)
-      Build-depends: SDL >= 0.6,
-                     cairo >= 0.12.4
+      Build-depends: SDL == 0.6.*
       Cpp-options: -DSDL_WINDOW
 
 source-repository head
diff --git a/src/GHC/Vis/View/Graph/Parser.hs b/src/GHC/Vis/View/Graph/Parser.hs
--- a/src/GHC/Vis/View/Graph/Parser.hs
+++ b/src/GHC/Vis/View/Graph/Parser.hs
@@ -123,7 +123,7 @@
 defaultVis = graphToDot nonClusteredParams
   -- Somehow (X11Color Transparency) is white, use (RGBA 0 0 0 0) instead
   -- Ordering OutEdges is not strong enough to force edge ordering, might not look good anyway
-  { globalAttributes = [GraphAttrs [BgColor [RGBA 0 0 0 0], FontName fontName, FontSize graphFontSize]]
+  { globalAttributes = [GraphAttrs [BgColor [toWC $ RGBA 0 0 0 0], FontName fontName, FontSize graphFontSize]]
   , fmtNode = \ (_,l) -> [toLabel l, FontName fontName, FontSize nodeFontSize]
   --, fmtNode = \ (_,l) -> [toLabel l, FontName fontName, FontSize nodeFontSize, Style [SItem Filled []], FillColor [RGBA 255 255 255 255], Color [RGBA 0 0 0 255]]
   --, fmtNode = \ (_,l) -> [toLabel l, FontName fontName, FontSize nodeFontSize, Shape PlainText]