diff --git a/clay.cabal b/clay.cabal
--- a/clay.cabal
+++ b/clay.cabal
@@ -1,5 +1,5 @@
 Name:     clay
-Version:  0.9
+Version:  0.9.0.1
 Synopsis: CSS preprocessor as embedded Haskell.
 Description:
   Clay is a CSS preprocessor like LESS and Sass, but implemented as an embedded
@@ -11,20 +11,8 @@
   .
   The API documentation can be found in the top level module "Clay".
   .
-  > 0.8 -> 0.9
-  >  - Added list-style-type property.
-  >  - Added some CSS3 selectors and pseudo-classes.
-  >  - Added some missing HTML5 elements.
-  >  - Added keyframes support.
-  >  - Fixed bug in linear in transition.
-  >  - Added Initial and Unset type classes.
-  >  - Added animation related styling rules.
-  >  - Restored old renderer.
-  >  - Fixed bunch of warnings.
-  >  - Added :last-child pseudo selector.
-  >  - Stub test suite
-  >  Thanks to Sergei Trofimovich, Levi Ad, Ian D. Bollinger, Ben Gamari and Oly Mi!
-
+  > 0.9 -> 0.9.0.1
+  >  - Fixed bug in easing properties.
 
 Author:        Sebastiaan Visser
 Maintainer:    Sebastiaan Visser <code@fvisser.nl>
diff --git a/src/Clay/Transition.hs b/src/Clay/Transition.hs
--- a/src/Clay/Transition.hs
+++ b/src/Clay/Transition.hs
@@ -74,12 +74,12 @@
 ease, easeIn, easeOut, easeInOut, linear, stepStart, stepStop :: TimingFunction
 
 ease       = other "ease"
-easeIn     = other "easeIn"
-easeOut    = other "easeOut"
-easeInOut  = other "easeInOut"
+easeIn     = other "ease-in"
+easeOut    = other "ease-out"
+easeInOut  = other "ease-in-out"
 linear     = other "linear"
-stepStart  = other "stepStart"
-stepStop   = other "stepStop"
+stepStart  = other "step-start"
+stepStop   = other "step-stop"
 
 stepsStart, stepsStop :: Integer -> TimingFunction