diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## [v1.3.0.4](https://github.com/diagrams/diagrams-core/tree/v1.3.0.4) (2015-11-10)
+
+  - allow `semigroups-0.18`
+
+[Full Changelog](https://github.com/diagrams/diagrams-core/compare/v1.3.0.3...v1.3.0.4)
+
 ## [v1.3.0.3](https://github.com/diagrams/diagrams-core/tree/v1.3.0.3) (2015-09-17)
 
   - allow `lens-4.13`
diff --git a/diagrams-core.cabal b/diagrams-core.cabal
--- a/diagrams-core.cabal
+++ b/diagrams-core.cabal
@@ -1,5 +1,5 @@
 Name:                diagrams-core
-Version:             1.3.0.3
+Version:             1.3.0.4
 Synopsis:            Core libraries for diagrams EDSL
 Description:         The core modules underlying diagrams,
                      an embedded domain-specific language
@@ -39,7 +39,7 @@
   Build-depends:       base >= 4.2 && < 4.9,
                        containers >= 0.4.2 && < 0.6,
                        unordered-containers >= 0.2 && < 0.2.6,
-                       semigroups >= 0.8.4 && < 0.18,
+                       semigroups >= 0.8.4 && < 0.19,
                        monoid-extras >= 0.3 && < 0.5,
                        dual-tree >= 0.2 && < 0.3,
                        lens >= 4.0 && < 4.14,