diff --git a/setup.py b/setup.py
index 49a80e38..ded3497d 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setup(
     name="mashumaro",
-    version="1.12",
+    version="1.13",
     description="Fast serialization framework on top of dataclasses",
     long_description=open('README.md', encoding='utf8').read(),
     long_description_content_type='text/markdown',