diff --git a/pyproject.toml b/pyproject.toml
index f82babf..09e4bb4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "minato"
-version = "0.11.2"
+version = "0.12.0"
 description = "A Unified File I/O Library for Python"
 authors = ["Yasuhiro Yamaguchi <altescy@fastmail.com>"]
 license = "MIT License"
diff --git a/tests/test_minato.py b/tests/test_minato.py
index 8a0d5ea..5b5ca1b 100644
--- a/tests/test_minato.py
+++ b/tests/test_minato.py
@@ -8,7 +8,7 @@
 
 
 def test_version() -> None:
-    assert minato.__version__ == "0.11.2"
+    assert minato.__version__ == "0.12.0"
 
 
 def test_open() -> None: