diff --git a/CHANGES.markdown b/CHANGES.markdown
--- a/CHANGES.markdown
+++ b/CHANGES.markdown
@@ -1,3 +1,8 @@
+1.1.2.4 (04 Dec 2014)
+---------------------
+
+- Allow `semigroups-0.16`
+
 1.1.2.3 (17 November 2014)
 --------------------------
 
diff --git a/diagrams-contrib.cabal b/diagrams-contrib.cabal
--- a/diagrams-contrib.cabal
+++ b/diagrams-contrib.cabal
@@ -1,5 +1,5 @@
 name:                diagrams-contrib
-version:             1.1.2.3
+version:             1.1.2.4
 synopsis:            Collection of user contributions to diagrams EDSL
 description:         A collection of user contributions for diagrams,
                      an embedded domain-specific language for generation
@@ -62,7 +62,7 @@
                        parsec >= 3.1 && < 3.2,
                        text >= 0.11 && < 1.3,
                        data-default-class < 0.1,
-                       semigroups >= 0.3.4 && < 0.16
+                       semigroups >= 0.3.4 && < 0.17
  hs-source-dirs:      src
  default-language:    Haskell2010