diff --git a/CHANGES b/CHANGES
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,7 @@
+Trunk:
+
+  * Bump 'semigroupoids' package upper bound.
+
 0.1.0.0: 9 March 2012
 
   Initial release.
diff --git a/active.cabal b/active.cabal
--- a/active.cabal
+++ b/active.cabal
@@ -1,5 +1,5 @@
 name:                active
-version:             0.1.0.0
+version:             0.1.0.1
 synopsis:            Abstractions for animation
 description:         "Active" abstraction for animated things with finite start and end times.
 license:             BSD3
@@ -21,7 +21,7 @@
   build-depends:       base >= 4.0 && < 4.6,
                        array >= 0.3 && < 0.5,
                        semigroups >= 0.1 && < 0.9,
-                       semigroupoids >= 1.2 && < 1.3,
+                       semigroupoids >= 1.2 && < 1.4,
                        vector-space >= 0.8 && < 0.9,
                        newtype >= 0.2 && < 0.3
   hs-source-dirs:      src
@@ -32,7 +32,7 @@
     build-depends:     base >= 4.0 && < 4.6,
                        array >= 0.3 && < 0.5,
                        semigroups >= 0.1 && < 0.9,
-                       semigroupoids >= 1.2 && < 1.3,
+                       semigroupoids >= 1.2 && < 1.4,
                        vector-space >= 0.8 && < 0.9,
                        newtype >= 0.2 && < 0.3,