diff --git a/graph-rewriting-trs.cabal b/graph-rewriting-trs.cabal
--- a/graph-rewriting-trs.cabal
+++ b/graph-rewriting-trs.cabal
@@ -1,5 +1,5 @@
 Name:           graph-rewriting-trs
-Version:        0.1.5
+Version:        0.1.6
 Copyright:      (c) 2011, Jan Rochel
 License:        BSD3
 License-File:   LICENSE
@@ -16,7 +16,7 @@
 Executable trs
   Main-Is:        Main.hs
   Build-Depends:
-    base >= 4 && < 4.7,
+    base >= 4 && < 4.8,
     base-unicode-symbols >= 0.2 && < 0.3,
     graph-rewriting >= 0.7.1 && < 0.8,
     graph-rewriting-layout >= 0.5.1 && < 0.6,