diff --git a/CHANGES.markdown b/CHANGES.markdown
--- a/CHANGES.markdown
+++ b/CHANGES.markdown
@@ -1,3 +1,8 @@
+0.6.0.3 (4 May 2013)
+--------------------
+
+* bump upper bound to allow `NumInstances-1.3`
+
 0.6.0.2 (28 March 2013)
 -----------------------
 
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:             0.6.0.2
+Version:             0.6.0.3
 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
@@ -68,7 +68,7 @@
                        diagrams-core >= 0.6 && < 0.7,
                        active >= 0.1 && < 0.2,
                        vector-space >= 0.7.7 && < 0.9,
-                       NumInstances >= 1.0 && < 1.3,
+                       NumInstances >= 1.0 && < 1.4,
                        colour >= 2.3.2 && < 2.4,
                        data-default >= 0.2 && < 0.6,
                        pretty >= 1.0.1.2 && < 1.2,