diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index f19dff9..2236e14 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -15,6 +15,9 @@ on:
       - '**.zig'
       - '.github/workflows/CI.yml'
 
+env:
+  ZIG_VERSION: 0.12.0
+
 jobs:
   test:
     timeout-minutes: 10
@@ -23,14 +26,13 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        zig-version: [master]
     steps:
       - uses: actions/checkout@v4
         with:
           submodules: true
       - uses: goto-bus-stop/setup-zig@v2
         with:
-          version: ${{ matrix.zig-version }}
+          version: ${{ env.ZIG_VERSION }}
       - name: fmt and test(windows)
         if: matrix.os == 'windows-latest'
         run: |
@@ -53,10 +55,10 @@ jobs:
         os: [ubuntu-latest]
         targets: [x86_64-windows, x86_64-linux, x86_64-macos, aarch64-macos]
     steps:
-      - uses: actions/checkout@v2
-      - uses: goto-bus-stop/setup-zig@v1
+      - uses: actions/checkout@v4
+      - uses: goto-bus-stop/setup-zig@v2
         with:
-          version: master
+          version: ${{ env.ZIG_VERSION }}
       - name: Build
         run: |
           zig build -Dtarget=${{ matrix.targets }} -Dis_ci
diff --git a/.github/workflows/binary.yml b/.github/workflows/binary.yml
index 8b6a607..8ab31b4 100644
--- a/.github/workflows/binary.yml
+++ b/.github/workflows/binary.yml
@@ -13,6 +13,9 @@ on:
       - "**.zig"
       - ".github/workflows/binary.yml"
 
+env:
+  ZIG_VERSION: 0.12.0
+
 jobs:
   build:
     timeout-minutes: 10
@@ -20,7 +23,6 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        zig-version: ["master"]
         targets:
           - "x86-windows"
           - "x86_64-windows"
@@ -35,7 +37,7 @@ jobs:
           submodules: true
       - uses: goto-bus-stop/setup-zig@v2
         with:
-          version: ${{ matrix.zig-version }}
+          version: ${{ env.ZIG_VERSION }}
       - name: Set Environment Variables
         run: |
           echo "BUILD_DATE=$(date +'%Y-%m-%dT%H:%M:%S%z')" >> $GITHUB_ENV
@@ -58,17 +60,17 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        zig-version: ["master"]
         targets:
           - "x86_64-macos"
           - "aarch64-macos"
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: true
       - uses: goto-bus-stop/setup-zig@v2
         with:
-          version: ${{ matrix.zig-version }}
+          version: ${{ env.ZIG_VERSION }}
+
       - name: Set Environment Variables
         run: |
           echo "BUILD_DATE=$(date +'%Y-%m-%dT%H:%M:%S%z')" >> $GITHUB_ENV
diff --git a/.github/workflows/simargs.yml b/.github/workflows/simargs.yml
index fb1d767..800ab65 100644
--- a/.github/workflows/simargs.yml
+++ b/.github/workflows/simargs.yml
@@ -13,6 +13,9 @@ on:
       - 'src/mod/simargs.zig'
       - ".github/workflows/simargs.yml"
 
+env:
+  ZIG_VERSION: 0.12.0
+
 jobs:
   memory-leak:
     timeout-minutes: 10
@@ -25,7 +28,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: goto-bus-stop/setup-zig@v2
         with:
-          version: master
+          version: ${{ env.ZIG_VERSION }}
       - name: Memory leak detect
         run: |
           sudo apt update && sudo apt install -y valgrind
diff --git a/.tool-versions b/.tool-versions
index f81adbc..c947e45 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1 +1 @@
-zig master
+zig 0.12.0
diff --git a/README.org b/README.org
index a808045..fc453b2 100644
--- a/README.org
+++ b/README.org
@@ -1,12 +1,13 @@
 #+TITLE: Zigcli
 #+DATE: 2023-10-21T12:09:48+0800
-#+LASTMOD: 2024-03-23T15:36:18+0800
+#+LASTMOD: 2024-05-02T18:01:55+0800
 #+TYPE: docs
 
 [[https://github.com/jiacai2050/zigcli/stargazers][https://img.shields.io/github/stars/jiacai2050/zigcli.svg]]
 [[https://github.com/jiacai2050/zigcli/blob/main/LICENSE][https://img.shields.io/github/license/jiacai2050/zigcli.svg]]
 [[https://github.com/jiacai2050/loc/actions/workflows/CI.yml][https://github.com/jiacai2050/loc/actions/workflows/CI.yml/badge.svg]]
 [[https://github.com/jiacai2050/loc/actions/workflows/binary.yml][https://github.com/jiacai2050/loc/actions/workflows/binary.yml/badge.svg]]
+[[https://img.shields.io/badge/zig%20version-0.12.0-blue.svg]]
 
 #+begin_quote
 [[/][Zigcli]] is a toolkit for building command lines programs in Zig.
@@ -45,7 +46,7 @@ To build zigcli locally, Zig master is required, which can be downloaded [[https
 =zigcli= support [[https://ziglang.org/download/0.11.0/release-notes.html#Package-Management][package manager]] introduced in Zig 0.11.
 
 #+begin_src bash
-zig fetch --save=curl https://github.com/jiacai2050/zigcli/archive/${COMMIT}.tar.gz
+zig fetch --save=zigcli https://github.com/jiacai2050/zigcli/archive/${COMMIT}.tar.gz
 #+end_src
 
 #+RESULTS: