diff --git a/README.md b/README.md
index a1eda1b..94b56eb 100644
--- a/README.md
+++ b/README.md
@@ -47,8 +47,8 @@ Clock.schedule_interval(clock.tick, 0)
 Pin the minor version.
 
 ```
-poetry add asyncgui-ext-clock@~0.4
-pip install "asyncgui-ext-clock>=0.4,<0.5"
+poetry add asyncgui-ext-clock@~0.5
+pip install "asyncgui-ext-clock>=0.5,<0.6"
 ```
 
 ## Tested on
diff --git a/pyproject.toml b/pyproject.toml
index bbe6331..e3dfd1a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "asyncgui-ext-clock"
-version = "0.5.0.dev0"
+version = "0.5.0"
 description = "An event scheduler for asyncgui programs"
 authors = ["Nattōsai Mitō <flow4re2c@gmail.com>"]
 license = "MIT"