diff --git a/CHANGES.markdown b/CHANGES.markdown
--- a/CHANGES.markdown
+++ b/CHANGES.markdown
@@ -1,3 +1,8 @@
+0.6.0.1: 7 January 2013
+-----------------------
+
+* allow `semigroups-0.9`
+
 0.6: 11 December 2012
 ---------------------
 
diff --git a/diagrams-lib.cabal b/diagrams-lib.cabal
--- a/diagrams-lib.cabal
+++ b/diagrams-lib.cabal
@@ -1,5 +1,5 @@
 Name:                diagrams-lib
-Version:             0.6
+Version:             0.6.0.1
 Synopsis:            Embedded domain-specific language for declarative graphics
 Description:         Diagrams is a flexible, extensible EDSL for creating
                      graphics of many types.  Graphics can be created
@@ -63,7 +63,7 @@
   Build-depends:       base >= 4.2 && < 4.7,
                        containers >= 0.3 && < 0.6,
                        array >= 0.3 && < 0.5,
-                       semigroups >= 0.3.4 && < 0.9,
+                       semigroups >= 0.3.4 && < 0.10,
                        monoid-extras >= 0.2.2 && < 0.3,
                        diagrams-core >= 0.6 && < 0.7,
                        active >= 0.1 && < 0.2,