diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e13b497..3aaf354 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -93,25 +93,18 @@ jobs:
     runs-on: windows-latest
     steps:
       - uses: actions/checkout@v3
-      - name: install yq
-        run: choco install yq -y
-      - name: install wget
-        run: choco install wget -y
+      - name: install dependencies
+        run: | 
+          choco install yq -y
+          pip install httpx
       - uses: subosito/flutter-action@v2
         with:
           channel: "stable"
           flutter-version-file: pubspec.yaml
           architecture: x64
-      - name: install inno setup
-        run: |
-          choco install innosetup -y
-          $inno_path = "C:\Program Files (x86)\Inno Setup 6"
-          wget "https://raw.githubusercontent.com/kira-96/Inno-Setup-Chinese-Simplified-Translation/refs/heads/main/ChineseSimplified.isl" -OutFile "$inno_path\Languages\ChineseSimplified.isl"
-      - run: flutter pub get
       - name: build
         run: |
-          $inno_path = "C:\Program Files (x86)\Inno Setup 6\"
-          $env:PATH += ";$inno_path"
+          flutter pub get
           python windows/build.py
       - uses: actions/upload-artifact@v4
         with:
diff --git a/windows/build.iss b/windows/build.iss
index 1e4ec0d..3f9953b 100644
--- a/windows/build.iss
+++ b/windows/build.iss
@@ -33,7 +33,7 @@ WizardStyle=modern
 
 [Languages]
 Name: "english"; MessagesFile: "compiler:Default.isl"
-Name: "chinesesimplified"; MessagesFile: "compiler:Languages\ChineseSimplified.isl"
+Name: "chinesesimplified"; MessagesFile: "{#RootPath}\windows\ChineseSimplified.isl"
 
 [Tasks]
 Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked
diff --git a/windows/build.py b/windows/build.py
index 55bb0c1..c3d1a4f 100644
--- a/windows/build.py
+++ b/windows/build.py
@@ -1,5 +1,6 @@
 import subprocess
 import os
+import httpx
 
 file = open('pubspec.yaml', 'r')
 content = file.read()
@@ -26,6 +27,13 @@ file = open('windows/build.iss', 'w')
 file.write(newContent)
 file.close()
 
+if not os.path.exists("windows/ChineseSimplified.isl"):
+    # download ChineseSimplified.isl
+    url = "https://raw.githubusercontent.com/kira-96/Inno-Setup-Chinese-Simplified-Translation/refs/heads/main/ChineseSimplified.isl"
+    response = httpx.get(url)
+    with open('windows/ChineseSimplified.isl', 'wb') as file:
+        file.write(response.content)
+
 subprocess.run(["iscc", "windows/build.iss"], shell=True)
 
 with open('windows/build.iss', 'w') as file: