diff --git a/CHANGES.markdown b/CHANGES.markdown
--- a/CHANGES.markdown
+++ b/CHANGES.markdown
@@ -1,3 +1,8 @@
+1.2.0.6 (04 Dec 2014)
+---------------------
+
+- Allow `semigroups-0.16`
+
 1.2.0.5 (17 November 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:             1.2.0.5
+Version:             1.2.0.6
 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
@@ -93,7 +93,7 @@
   Build-depends:       base >= 4.2 && < 4.8,
                        containers >= 0.3 && < 0.6,
                        array >= 0.3 && < 0.6,
-                       semigroups >= 0.3.4 && < 0.16,
+                       semigroups >= 0.3.4 && < 0.17,
                        monoid-extras >= 0.3 && < 0.4,
                        dual-tree >= 0.2 && < 0.3,
                        diagrams-core >= 1.2 && < 1.3,