diff --git a/CHANGES b/CHANGES
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,7 @@
+## [v0.2.0.10](https://github.com/diagrams/active/tree/v0.2.0.10) (2016-07-01)
+
+- allow `semigroupoids-5.1`
+
 ## [v0.2.0.9](https://github.com/diagrams/active/tree/v0.2.0.9) (2016-05-01)
 
 - allow `lens-4.14`
diff --git a/active.cabal b/active.cabal
--- a/active.cabal
+++ b/active.cabal
@@ -1,5 +1,5 @@
 name:                active
-version:             0.2.0.9
+version:             0.2.0.10
 synopsis:            Abstractions for animation
 description:         "Active" abstraction for animated things with finite start and end times.
 license:             BSD3
@@ -23,7 +23,7 @@
   build-depends:       base >= 4.0 && < 4.10,
                        vector >= 0.10,
                        semigroups >= 0.1 && < 0.19,
-                       semigroupoids >= 1.2 && < 5.1,
+                       semigroupoids >= 1.2 && < 5.2,
                        lens >= 4.0 && < 4.15,
                        linear >= 1.14 && < 1.21
   hs-source-dirs:      src
@@ -35,7 +35,7 @@
     build-depends:     base >= 4.0 && < 4.10,
                        vector >= 0.10,
                        semigroups >= 0.1 && < 0.19,
-                       semigroupoids >= 1.2 && < 5.1,
+                       semigroupoids >= 1.2 && < 5.2,
                        lens >= 4.0 && < 4.15,
                        linear >= 1.14 && < 1.21,
                        QuickCheck >= 2.4.2 && < 2.9