diff --git a/CHANGES b/CHANGES
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,7 @@
+* 0.3.3.4: 28 May 2014
+
+  - allow semigroups-0.15
+
 * 0.3.3.3: 15 May 2014
 
   - allow semigroups-0.14
diff --git a/monoid-extras.cabal b/monoid-extras.cabal
--- a/monoid-extras.cabal
+++ b/monoid-extras.cabal
@@ -1,5 +1,5 @@
 name:                monoid-extras
-version:             0.3.3.3
+version:             0.3.3.4
 synopsis:            Various extra monoid-related definitions and utilities
 description:         Various extra monoid-related definitions and utilities,
                      such as monoid actions, monoid coproducts, \"deletable\"
@@ -33,7 +33,7 @@
 
   build-depends:     base >= 4.3 && < 4.8,
                      groups < 0.5,
-                     semigroups >= 0.8 && < 0.15,
+                     semigroups >= 0.8 && < 0.16,
                      semigroupoids >= 4.0 && < 5
 
   hs-source-dirs:    src