Version 0.4.0

1 files changed, 1 insertions, 1 deletions

diff --git a/API.md b/API.md
index a1a7bdf..b9bcd7b 100644
--- a/API.md
+++ b/API.md
@@ -1,4 +1,4 @@
-# API documentation for `doc_items` (Version 0.3.0)
+# API documentation for `doc_items` (Version 0.4.0)
 ## Introduction
 This document explains the API of `doc_items`. It contains a reference of
 all functions.