diff --git a/markdown_it/__init__.py b/markdown_it/__init__.py
index ec0dba5f..bbc39cd9 100644
--- a/markdown_it/__init__.py
+++ b/markdown_it/__init__.py
@@ -1,4 +1,4 @@
 from .main import MarkdownIt  # noqa: F401
 
 
-__version__ = "0.3.3"
+__version__ = "0.4.0"