diff --git a/README.rst b/README.rst
index 2c093b4..d2a781c 100644
--- a/README.rst
+++ b/README.rst
@@ -50,7 +50,7 @@ There's only one function to use::
 
 Besides the numerical argument, there's two optional arguments.
 
-**to:** The converter to use. Supperted values are:
+**to:** The converter to use. Supported values are:
 
 * ``cardinal`` (default)
 * ``ordinal``