diff --git a/freak/__init__.py b/freak/__init__.py
index 4c26d62..607b400 100644
--- a/freak/__init__.py
+++ b/freak/__init__.py
@@ -24,7 +24,7 @@ from suou.configparse import ConfigOptions, ConfigValue
 from .colors import color_themes, theme_classes
 from .utils import twocolon_list
 
-__version__ = '0.4.0.rc1'
+__version__ = '0.4.0'
 
 APP_BASE_DIR = os.path.dirname(os.path.dirname(__file__))
 
diff --git a/pyproject.toml b/pyproject.toml
index 48c04f8..b26dfd7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ dependencies = [
     "PsycoPG2-binary",
     "libsass",
     "setuptools>=78.1.0",
-    "sakuragasaki46-suou>=0.3.7"
+    "sakuragasaki46-suou>=0.4.0"
 ]
 requires-python =  ">=3.10"
 classifiers = [