diff --git a/.github/actions/setup-dotnet/action.yaml b/.github/actions/setup-dotnet/action.yaml
index a4c8b5c0e..a7ebea0af 100644
--- a/.github/actions/setup-dotnet/action.yaml
+++ b/.github/actions/setup-dotnet/action.yaml
@@ -2,11 +2,7 @@ name: Setup .NET SDKs
 runs:
   using: "composite"
   steps:
-    - uses: actions/setup-dotnet@v2
-      with:
-        dotnet-version: |
-          6.0.x
-          7.0.x
+    - uses: Cysharp/Actions/.github/actions/setup-dotnet@main
     - name: "Prepare Environment Variables (.NET SDK)"
       shell: bash
       run: |
diff --git a/.github/workflows/build-canary.yml b/.github/workflows/build-canary.yml
index b7d39d4d8..a85de365d 100644
--- a/.github/workflows/build-canary.yml
+++ b/.github/workflows/build-canary.yml
@@ -18,7 +18,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - uses: actions/checkout@v3
-      - uses: ./.github/actions/setup-dotnet
+      - uses: Cysharp/Actions/.github/actions/setup-dotnet@main
       - run: echo "MAGICONION_VERSION=ci-$(date '+%Y%m%d-%H%M%S')+${GITHUB_SHA:0:6}" >> $GITHUB_ENV
       - run: echo "MAGICONION_VERSION=${MAGICONION_VERSION}"
       # build
diff --git a/.github/workflows/build-debug.yml b/.github/workflows/build-debug.yml
index 56df509eb..70337203d 100644
--- a/.github/workflows/build-debug.yml
+++ b/.github/workflows/build-debug.yml
@@ -20,7 +20,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - uses: actions/checkout@v3
-      - uses: ./.github/actions/setup-dotnet
+      - uses: Cysharp/Actions/.github/actions/setup-dotnet@main
       - run: dotnet build -c ${{ env.BUILD_CONFIG }} ./MagicOnion.sln
 
   run-tests:
@@ -29,7 +29,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - uses: actions/checkout@v3
-      - uses: ./.github/actions/setup-dotnet
+      - uses: Cysharp/Actions/.github/actions/setup-dotnet@main
       - run: dotnet test -c Debug MagicOnion.sln
       - run: dotnet test -c Release MagicOnion.sln
 
diff --git a/.github/workflows/build-release.yml b/.github/workflows/build-release.yml
index ccfb63df2..d9b7c9afd 100644
--- a/.github/workflows/build-release.yml
+++ b/.github/workflows/build-release.yml
@@ -82,7 +82,7 @@ jobs:
       - uses: actions/checkout@v3
         with:
           ref: ${{ needs.update-packagejson.outputs.sha }}
-      - uses: ./.github/actions/setup-dotnet
+      - uses: Cysharp/Actions/.github/actions/setup-dotnet@main
       - name: Publish MagicOnion.Client.SourceGenerator.Unity
         run: dotnet publish -c ${{ env.BUILD_CONFIG }} -c Release ./src/MagicOnion.Client.SourceGenerator.Unity -o ./src/MagicOnion.Client.Unity/Assets/Scripts/MagicOnion/MagicOnion.Client/MagicOnion.Client.SourceGenerator.Unity
       - name: Remove .deps.json and .pdbs
@@ -136,7 +136,7 @@ jobs:
       - uses: actions/checkout@v3
         with:
           ref: ${{ needs.update-packagejson.outputs.sha }}
-      - uses: ./.github/actions/setup-dotnet
+      - uses: Cysharp/Actions/.github/actions/setup-dotnet@main
       - run: dotnet build -c ${{ env.BUILD_CONFIG }} ./MagicOnion.sln
       # pack nuget
       - run: dotnet pack -c ${{ env.BUILD_CONFIG }} ./MagicOnion.Packaging.slnf  --include-symbols --include-source --no-build -o ./publish
@@ -190,7 +190,7 @@ jobs:
       - uses: actions/checkout@v3
         with:
           ref: ${{ needs.update-packagejson.outputs.sha }}
-      - uses: ./.github/actions/setup-dotnet
+      - uses: Cysharp/Actions/.github/actions/setup-dotnet@main
       # Create Release
       - uses: actions/create-release@v1
         id: create_release