diff --git a/CHANGES.markdown b/CHANGES.markdown
--- a/CHANGES.markdown
+++ b/CHANGES.markdown
@@ -1,3 +1,8 @@
+1.1.0.6 (10 Aprile 2014)
+------------------------
+
+    - Allow `semigroups-0.13`
+
 1.1.0.4 (4 April 2014)
 ----------------------
 
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:             1.1.0.4
+Version:             1.1.0.6
 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
@@ -91,7 +91,7 @@
   Build-depends:       base >= 4.2 && < 4.8,
                        containers >= 0.3 && < 0.6,
                        array >= 0.3 && < 0.6,
-                       semigroups >= 0.3.4 && < 0.13,
+                       semigroups >= 0.3.4 && < 0.14,
                        monoid-extras >= 0.3 && < 0.4,
                        diagrams-core >= 1.1 && < 1.2,
                        active >= 0.1 && < 0.2,