diff --git a/.github/workflows/mac.yml b/.github/workflows/mac.yml
index 176cc13..5112ebd 100644
--- a/.github/workflows/mac.yml
+++ b/.github/workflows/mac.yml
@@ -19,15 +19,18 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@master
+        uses: actions/checkout@v4
 
-      - name: SetUp HomeBrew
-        id: set-up-homebrew
-        uses: Homebrew/actions/setup-homebrew@master
+#      - name: SetUp HomeBrew
+#        id: set-up-homebrew
+#        uses: Homebrew/actions/setup-homebrew@master
       
       - name: Install Dependencies
         run: HOMEBREW_NO_INSTALL_CLEANUP=1 HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1 brew install openssl protobuf
 
+      - name: Install ninja-build tool
+        uses: seanmiddleditch/gha-setup-ninja@master
+
       - name: Configure CMake
         run: OPENSSL_ROOT_DIR=/usr/local/opt/openssl@3 CXX=clang++ CC=clang cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{matrix.mode}} -DCINATRA_ENABLE_SSL=${{matrix.ssl}}
 
diff --git a/README.md b/README.md
index 9929adc..2f7dae9 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,11 @@ rest_rpc是一个高性能、易用、跨平台、header only的基于c++20 协
 
 可以快速上手，使用者只需要关注自己的业务逻辑即可。
 
+# 编译器版本
+需要完全支持c++20 的编译器：
+
+gcc12+, clang14+, msvc2022
+
 # 谁在用rest_rpc
 
 1. 博世汽车