diff --git a/graph-rewriting-lambdascope.cabal b/graph-rewriting-lambdascope.cabal
--- a/graph-rewriting-lambdascope.cabal
+++ b/graph-rewriting-lambdascope.cabal
@@ -1,5 +1,5 @@
 Name:           graph-rewriting-lambdascope
-Version:        0.5.9
+Version:        0.5.10
 Copyright:      (c) 2010, Jan Rochel
 License:        BSD3
 License-File:   LICENSE
@@ -18,16 +18,16 @@
 Executable lambdascope
   Main-Is:        Main.hs
   Build-Depends:
-    base >= 4 && < 5,
-    base-unicode-symbols >= 0.2,
+    base >= 4.8 && < 4.10,
+    base-unicode-symbols >= 0.2 && < 0.3,
     graph-rewriting >= 0.7.8,
     graph-rewriting-layout >= 0.5.4,
     graph-rewriting-gl >= 0.7.6,
     graph-rewriting-strategies >= 0.2.4,
-    parsec >= 3.1,
-    GLUT >= 2.2,
-    OpenGL >= 3.0,
-    IndentParser >= 0.2
+    parsec >= 3.1 && < 3.2,
+    GLUT >= 2.2 && < 2.8,
+    OpenGL >= 3.0 && < 3.1,
+    IndentParser >= 0.2 && < 0.3
   Extensions:
     UnicodeSyntax
     FlexibleInstances