diff --git a/setup.py b/setup.py
index 77bbaf1..ac2eea9 100644
--- a/setup.py
+++ b/setup.py
@@ -12,8 +12,8 @@ setup(
     name='sitemap-generator',
     version=get_version(
         major=0,
-        minor=3,
-        build=9,
+        minor=4,
+        build=1,
     ),
     packages=find_packages(exclude=EXCLUDE_FROM_PACKAGES),
     include_package_data=True,