diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index ce39804..39ca1c1 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -19,14 +19,16 @@ jobs:
 
     steps:
     - name: Checkout repository and submodule
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         submodules: recursive
 
     - name: Install dependencies
-      run: brew install expat fmt
+      run: brew install cmake expat fmt
 
     - name: Configure CMake
+      env:
+        PKG_CONFIG_PATH: /usr/local/opt/expat/lib/pkgconfig
       run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{matrix.BUILD_TYPE}}
 
     - name: Build