diff --git a/docs/protocol-changes.rst b/docs/protocol-changes.rst
index faa96ac..f9cbbbd 100644
--- a/docs/protocol-changes.rst
+++ b/docs/protocol-changes.rst
@@ -56,7 +56,7 @@ Changes
     *verbose*.
   * :func:`blockchain.headers.subscribe` now has an optional parameter
     *raw*.
-  * :func:`server.vesrion` should not be used for "ping" functionality;
+  * :func:`server.version` should not be used for "ping" functionality;
     use the new :func:`server.ping` method instead.
 
 New methods