diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 13d1192fd..bf9549fcf 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -36,7 +36,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: cmake
-        run: cmake -S . -B build -D CMAKE_BUILD_TYPE=Debug -DJSON_BuildTests=On -DJSON_FastTests=ON -DCMAKE_CXX_STANDARD=${{ matrix.standard }} -DCMAKE_CXX_STANDARD_REQUIRED=ON
+        run: cmake -S . -B build -D CMAKE_BUILD_TYPE=Debug -DJSON_BuildTests=On -DCMAKE_CXX_STANDARD=${{ matrix.standard }} -DCMAKE_CXX_STANDARD_REQUIRED=ON
       - name: build
         run: cmake --build build --parallel 10
       - name: test