diff --git a/AUTHORS b/AUTHORS
new file mode 100644
--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1,2 @@
+Jan Rochel
+Chas Leichner (Google Inc.)
diff --git a/graph-rewriting-layout.cabal b/graph-rewriting-layout.cabal
--- a/graph-rewriting-layout.cabal
+++ b/graph-rewriting-layout.cabal
@@ -1,5 +1,5 @@
 Name:          graph-rewriting-layout
-Version:       0.5.3
+Version:       0.5.4
 Copyright:     (c) 2010, Jan Rochel
 License:       BSD3
 License-File:  LICENSE
@@ -12,12 +12,13 @@
 Description:   Defines basic methods for force-directed node displacement that can be combined into an incremental graph-drawing procedure. See graph-rewriting-ski package for an example.
 Category:      Graphs, Graphics
 Cabal-Version: >= 1.6
+Extra-Source-Files: AUTHORS
 
 Library
   Build-Depends:
-    base >= 4 && < 4.8,
+    base >= 4 && < 4.9,
     base-unicode-symbols >= 0.2 && < 0.3,
-    graph-rewriting >= 0.5 && < 0.8,
+    graph-rewriting >= 0.7.8 && < 0.8,
     AC-Vector >= 2.3 && < 2.4
   Exposed-Modules:
     GraphRewriting.Layout.Position
@@ -38,4 +39,4 @@
     MultiParamTypeClasses
     TypeSynonymInstances
     OverlappingInstances
-  GHC-Options:    -fno-warn-duplicate-exports -fwarn-unused-binds -fwarn-unused-imports -fwarn-unused-do-bind -fwarn-wrong-do-bind -fwarn-unrecognised-pragmas
+  GHC-Options:    -fno-warn-duplicate-exports -fwarn-unused-binds -fwarn-unused-imports -fwarn-unused-do-bind -fwarn-wrong-do-bind -fwarn-unrecognised-pragmas -fno-warn-tabs