diff --git a/CHANGELOG.md b/CHANGELOG.md
index fcd4396..e3b1590 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,34 @@
-# CHANGELOG
+# Changelog
+
+All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
+
+## [2.0.0](https://github.com/bskim45/alfred-helm-hub/compare/1.3.0...2.0.0) (2022-05-08)
+
+### Breaking changes
+
+Python 2 has been removed from macOS 12.3 Monterey,
+and default system Python is now Python 3.8.
+(https://www.alfredapp.com/help/kb/python-2-monterey/)
+
+This is first version that supports macOS 12.3+ (Python 3.8+).
+
+Please note that **Python 2 and Alfred 3 is no longer supported.**
+If you are using macOS 12.2 or below, please do not upgrade to 2.0.0+
+and keep using 1.3.0.
+
+Special thanks to @NorthIsUp for porting [alfred-workflow](https://github.com/NorthIsUp/alfred-workflow-py3) to Python 3.
+
+### Features
+
+* support python3 (macOS 12.3+) ([ef9f083](https://github.com/bskim45/alfred-helm-hub/commit/ef9f083a625d24fc9853c850a6dc804e06185570))
+
 
 ## v1.3.0 (2021-06-16)
 
 ### Changelog
 - Fix `artifacthub.io` search (api changes in `artifacthub.io`)
 
+
 ## v1.2.0 (2021-03-22)
 
 ### Breaking Changes
diff --git a/README.md b/README.md
index 5c2ebc4..a0969d1 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,21 @@
 # alfred-helm-hub
 Quickly search Helm charts from Helm Hub via Alfred workflow
 
-Supports Alfred 3 and Alfred 4 on macOS 10.7+ (Python 2.7).
+Supports Alfred 4 on macOS 12.3+ (Python 3.8+).
+
+## ⚠️ Using this workflow on macOS 12.3+ Monterey
+[2.0.0](https://github.com/bskim45/alfred-helm-hub/releases/tag/2.0.0)
+is the first version that supports macOS 12.3+ (Python 3.8+).
+Please upgrade your workflow version to 2.0.0 or later
+if you are using macOS 12.3+.
+
+Feel free to open issues for any troubles regarding this change.
+
+## ⚠️ Note to macOS 12.2 or below users
+[1.3.0](https://github.com/bskim45/alfred-helm-hub/releases/tag/1.1.0)
+is the last version that supports macOS 12.2 and below (Python 2).
+Please do not upgrade to 2.x version if you are using macOS 12.2 or below.
+
 
 ## Install
 [Download latest package from releases](https://github.com/bskim45/alfred-helm-hub/releases/latest/download/alfred-helm-hub.alfredworkflow)
@@ -23,4 +37,10 @@ Press `Enter⏎` to toggle the results from selected hub repo.
 ## License
 The code is released under the MIT licence. See [LICENSE](LICENSE) for details.
 
-Awesome [alfred-workflow](https://github.com/deanishe/alfred-workflow) library by [@deanishe](https://github.com/deanishe) is also released under [MIT License](alfred-workflow/LICENCE.txt).
+Awesome [alfred-workflow](https://github.com/NorthIsUp/alfred-workflow-py3)
+library by [@NorthIsUp](https://github.com/NorthIsUp) is also released under
+[MIT License](alfred-workflow/LICENCE.txt).
+
+[alfred-workflow](https://github.com/NorthIsUp/alfred-workflow) is
+originally created by [@deanishe](https://github.com/deanishe)
+and ported to Python 3 by  [@NorthIsUp](https://github.com/NorthIsUp).
diff --git a/info.plist b/info.plist
index 7c9088f..8738ff8 100644
--- a/info.plist
+++ b/info.plist
@@ -265,7 +265,7 @@
 	<key>variablesdontexport</key>
 	<array/>
 	<key>version</key>
-	<string>1.3.0</string>
+	<string>2.0.0</string>
 	<key>webaddress</key>
 	<string>https://bsk.im</string>
 </dict>
diff --git a/pyproject.toml b/pyproject.toml
index e5e1376..1677d1c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "alfred-helm-hub"
-version = "1.3.0"
+version = "2.0.0"
 description = ""
 authors = ["Bumsoo Kim <bskim45@gmail.com>"]
 license = "MIT"
diff --git a/version b/version
index f0bb29e..359a5b9 100644
--- a/version
+++ b/version
@@ -1 +1 @@
-1.3.0
+2.0.0
\ No newline at end of file