diff --git a/CHANGES.markdown b/CHANGES.markdown
--- a/CHANGES.markdown
+++ b/CHANGES.markdown
@@ -1,3 +1,8 @@
+1.0.0.1 (28 November 2013)
+--------------------------
+
+    - Allow semigroups-0.12
+
 1.0: 25 November 2013
 ---------------------
 
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:             1.0
+version:             1.0.0.1
 synopsis:            Collection of user contributions to diagrams EDSL
 description:         A collection of user contributions for diagrams,
                      an embedded domain-specific language for generation
@@ -61,7 +61,7 @@
                        parsec >= 3.1 && < 3.2,
                        text >= 0.11 && < 0.12,
                        data-default-class < 0.1,
-                       semigroups >= 0.3.4 && < 0.12
+                       semigroups >= 0.3.4 && < 0.13
   hs-source-dirs:      src
   default-language:    Haskell2010